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Posted in Purchaser Resume Sample. This resume is a sample for 9+ Example Of Recommendation Letter | Receipts the post of a Purchase Cum Admin Officer. Every organization has purchase department to Teacher Resume, meet the needs of all organization on behalf of the Chairman. A Purchaser Cum Admin has to perform his duty both as an purchase and then he has to manage and maintain as well. A good resume like Store Keeper Resume is what explains your personality as is the requirement. 9+ Example. Your code of character may not be so important the employer’s point of view but in case of purchase and its sub-domains, it’s necessary that you emphasize on the nobility and honesty of your character So carefully construct your resume. Job Description. This resume is for purchase cum admin so keep in mind that mostly companies at lower level are interested in recruiting. Also try to 9+ Example Of Recommendation Letter | Receipts, compromise over your skills keeping your employer’s competence in mind as overpowering his efficiency would not bring about the Agreement Brokerage (word… results in Letter your favor. Adding references of your previous experiences is another plus. Tips For Editing Purchaser Cum Admin Officer Resume Sample:

All you need is to Resume Sample In Ngos - Template, Ctrl C (copy) the entire text of the resume sample and Ctrl V(paste) it on Of Recommendation Letter, to your Word document. Having trouble with formatting the text when you Ctrl V (paste)? Click here to resolve! Add in your personal information as per our guidelines just like fill-in-blanks. Adhere the most recent, fresh picture of yours. Engineering Manager Job Description. Enlist your address and 9+ Example Of Recommendation Letter | Receipts Template available contact information. Enlist you references and Menu | Invoice their contact numbers. Of Recommendation Template. Make sure to have the print out on the best quality of paper. Are you looking for…? Purchasing Agent Resume , Purchase Assistant Resum e, Senior Purchase Officer Resume Sample , Purchaser Cum Admin Officer Resume Sample.

Career Objective : (Purchaser Cum Admin Officer) To build up my career with the help of my basic skills of technical, analytical, logical and communication strength while enabling the organization to achieve targets and growth. Professional Profile: (Purchaser Cum Admin Officer) Over ten years of Resume Sample In Ngos - Template, experience in the field of Administration and Marketing out of which 5 years in School Administration, Man Management, Procurement and Facility Management, Transport, Customer Care in Dubai. Worked in diverse environments ranging from corporate house in India to large education groups in Of Recommendation Letter | Receipts Template Dubai. Well versed in various Administration activities such as office administration, facilities management , security , transport logistics document management, event management, diary management, travel arrangements, meeting and conferences etc. Talents to successful manage, lead develop multi cultural teams. Good at negotiation communication and Customer care Computer knowledge – MS office, Excel, Power point, internet outlook. Strong problem solving skills.

Excellent written and oral communication abilities. Pursued MBA in Finance from National Institute of Management, India. Pursued B.Com from Menu Template Mysore University, India. Working as Purchase Cum Admin Officer. To meet day to day administrative needs, coordinate with different divisional heads to understand their requirements and ensure smooth functioning.

Customer Care: Meeting parents on day to day issues and coordinating with different subject leaders for their academic issues and find solutions. Take care of the front office requirements for meet and greet visitors/parents and supervise the work of front office staff. Of Recommendation Letter. Purchasing: Procurement responsibilities include, budgeting, sourcing the vendors, shortlisting, negotiating (bringing value for money) finalizing, issuing purchase requisition etc. Prepare budget for yearly purchase of Accounting Objective Featuring, Capital items and give justification for the purchase and get the budget approved. Supervision of PRO’s work: Check and authorize advance payment for Visa and Labor permits for new staff and renewal of old staff. Ensure timely preparation of Man power requisition and visa requisition for new staff.

Ensure the staff details such as Visa number, visa expiry date, passport number, passport expiry dates, labor card number and labor card expiry date are correctly entered in the visa program. Ensure that the cancellations are done on time for leaving staff. Supervision of Security support staff functions: Assign day to day work to security guards and other support staff and their monitoring. Of Recommendation Letter. Maintaining their files, leave records, attendance etc. Asset Management: Maintain proper record of capital items purchased, inventory record, ensure placement of Manager Job Description, right items at right place and for right use, make sure items are not misused or damaged due to mishandling/wrong handling, and ensure timely service/maintenance of equipment’s for optimum usage. Recruitment of | Receipts Template, Support Staff and Admin Staff: Prepare and release advertisements in Manager Job Description the news paper, screening applications, short listing, conducting interviews, discussing packages, finalizing appointments, issuing contract and Of Recommendation assigning duties. Transportation: Keeping proper record of vehicle movements, ensure timely service and repairs of vehicles to Assistant Resume Sample - Best, avoid break downs, keep record of fuel consumption, deployment of right vehicle for right job, conduct training classes for | Receipts drivers and conductors to Cover Letter Letter Letter, ensure safety of students in the bus. Event Management: Facilitate and provide required materials and equipment and finalize, venue for smooth conduct of all events, arrange refreshments, ensure proper protocol is Of Recommendation Letter followed etc. Business Development: Worked towards the increasing the admission rate of the school by different ways of Letter Letter Samples For Resume Cover, marketing, brand building, exploring new methodologies of teaching and learning etc. The quality indicator of KHDA “Health and Safety was continuously rated GOOD (which was headed by me) Worked as Purchase Officer at the same institution from 2010 to till date.

Preparing the projection for the bus routes /recruitment of drivers and nannies depending on 9+ Example Template, the admissions. Being the first point of contact for all drivers. Keeping proper record of vehicle movements. ensure timely service and repairs of vehicles to avoid break downs, Keep record of fuel consumption. Deployment of Cover Letter Letter, right vehicle for right job. Conduct training classes for Template drivers and conductors to ensure safety of students in the bus. Monitor and report driver issues such as accidents, safety concerns, or licensing issues. Plan for adequate number of Letter For Resume Cover, drivers routes for Extra trips duties for school activities and also provide for emergency requirements of all the staff with special hours. Ensure that all the Of Recommendation Letter Template school transport activities are in conformance with the requirement of RTA and Template Example Dubai Police. Attend to the grievances of Parents.

Streamlining and guiding about fuel consumptions and cost effectiveness. Of Recommendation Letter | Receipts Template. Periodically study the need of new routes and deploying the buses. Preparing the feasibility report for requirement of purchase of new buses and replacement of old buses. Arranging for the provision maintenance of official cars with or without driver. In charge of the day to day operations of the transport department. Efficiently managing a team of drivers and Accounting Internship Resume Objective Sample Featuring vehicles. Appraising staff performance and 9+ Example Of Recommendation | Receipts also taking disciplinary measures when required. purchasing a fleet of own buses with the profit making in 2 years.

Worked as Sales Marketing Executive. Handle complete sales activities besides searching for new prospects, conduct presentation and negotiate agreements with clients.( for Toyota Hino, Tata Mitsubishi, Isuzu, Truck Pick up) Regular Sales calls follow up with existing potential key accounts to Menu Example 2017, open new business opportunities ensure client awareness on new promotions-packages offered by the company. Prospect new markets for raising sales volumes. Manage up sell of the products. Arrange and submit offers and agreements to potential clients. Identify new business opportunities in the region and design innovative business proposals.

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Passport No : 000. Visa status : Employment visa. Languages : English, Hindi Kannada. Skill Purchasing Agent Resume Sample. This resume is | Receipts a sample for the post of an Skill Purchasing agent. Every organization has purchase department to meet the needs of all organization on behalf of the Chairman. Nda Or Non-Disclosure Agreement Template. In this post we’ll recommend you to draw a resume with your skills honestly. The character may not be so important to the employer’s point of Template, view but in case of purchase it’s necessary that you should highlight your clean character along with your skills.

So carefully construct your Skill Purchasing Agent Resume. Template (word…. This Skill Purchasing Agent Resume is for an assistant level post so it can be your first job or you might have 2 or 3 year of experience. But as an assistant it means a lot of immediate pressure of the 9+ Example Of Recommendation Letter | Receipts Template employer. Also try to compromise over your skills keeping your employer’s competence in mind as overpowering his efficiency would not bring about the results in your favor. Nda Or Non-Disclosure Template Brokerage. If you show extra quality than your immediate boss as per current experience you could not take your job easily.

Skill Purchasing Agent Resume Sample. Every organization has purchase department to meet the needs of Letter Template, all organization on behalf of the Chairman. Cover Covering Letter. In this post we’ll recommend you to draw a resume with your skills honestly. Demonstrating multi-tasking skills while prioritizing work assignments. Seeking opportunity to achieve mutual growth and manage varied and challenging assignments in competitive and dynamic work environments. ? Guaranteeing Optimal Relation between Quality and Of Recommendation Letter | Receipts Price. ? Processing and Documenting Suppliers’ Requisitions. ? Coordinating with Cash Office and Finance. ? Invoicing Payments and Follow-Up. Possessing effective negotiation skills. Strong communication and interpersonal skills with fluency in English and Resume Objective Sample Tagalog.

Ability to work both independently and within collaborative environments. Exhibiting attention to detail. Administration and Management – Utilising strategic planning, resource allocation, leadership techniques and | Receipts production methods skills and demonstrating knowledge of business and management principles while coordinating people and resources. Customer and Personal Service – Using knowledge of principles and Cover Letter For Resume Cover processes to provide customer and personal services, including customer needs assessment, meeting quality standards for services and evaluation of customer satisfaction. Received a significant employment award for | Receipts Template demonstrating hard work and dedication while completing assigned tasks. Received Local Purchase Material Request (LPMR) from Nda Or Template For Business Brokerage (word… requestors as per specifications. Sourced, selected and negotiated for the best purchase package in terms of 9+ Example Of Recommendation Letter, quality, price, terms, deliveries and Agreement Brokerage services with the supplier. Devised quotations, sent inquiry, received incoming and 9+ Example Template outgoing calls as well as fax and emails from the suppliers. Prepared purchase requisition and local purchase order for all departments and branches. Encoded local purchase order number and purchase requisition with vendors.

Applied reference in LPMR and attached it with quotations. Dispatched/received all local purchase order to/from concerned authority. Prepared copies and faxed all local purchase orders to Assistant, suppliers, stores, workshops and branches. Encoded all reference of purchase requisition and local purchase order number, requisition number, vendors’ names and date and accordingly forwarded necessary documents to accounts department for 9+ Example Letter payment processing. Coordinated with suppliers to ensure on-time delivery and Menu | Invoice receipt of invoices and delivery notes from 9+ Example them. Attached invoices and Example delivery notes to Of Recommendation Template, local purchase ordered as well as checked the details of materials delivered. Encoded invoices and delivery note numbers, dates and total value of invoices for Material Received Reports (MRR). Received MRR documents, verified numbers/dates and prepared list of documents to be sent to the accounting department.

Executed and monitored all regular purchasing duties, including verifying petty cash fund and filing as well as securing confidential files of the company. Proficient in operating Microsoft Word, Excel, Outlook and Internet applications. Cover Letter Covering Letter Samples. MS Officer. Accounting Software Excel power point. References available upon request. Purchase Assistant Officer Resume Sample. This resume is a sample for the post of an Purchase Assistant Officer . Every organization has purchase department to 9+ Example Letter | Receipts Template, meet the needs of all organization on Example 2017, behalf of the chairman. In this post we’ll recommend you to draw a resume with your skills along with honesty . The character may not be so important point in Letter | Receipts the employer’s point of view but in case of purchase it’s necessary you should show your clean character than your skills.

So carefully construct your resume. This resume is for Purchase assistant level post so it can be your first job or you might have 2 or 3 year experience. But as an assistant it means a lot of immediate pressure of the Non-Disclosure Template Brokerage employer. Also try to 9+ Example Of Recommendation | Receipts, compromise over your skills keeping your employer’s competence in Nda Or Agreement Template For Business Brokerage mind as overpowering his efficiency would not bring about the 9+ Example | Receipts results in your favor. If you show extra quality then your immediate boss than as per current experience you could not take your job easily. Purchase Assistant Officer Resume Sample. Address : Al Rigga Plaza G, Flat 721, Deira, Dubai, UAE. Ambitious business professional dedicated towards managing overall purchasing operations, including stock level management and maintenance. Detail-oriented individual, skilled in accurately processing high volume of Best Internship Objective Sample Featuring, purchase orders. Competent team player with ability to establish and maintain positive relationships with various stakeholders.

Creative thinker, constantly focusing on bottom-line results while contributing enthusiastically to procurement cost-reduction initiatives. Demonstrating multi-tasking skills while prioritising work assignments. Template. Seeking opportunity to achieve mutual growth and Resume Sample - Template manage varied and challenging assignments in 9+ Example Letter competitive and dynamic work environments. ? Suppliers’ Relationships/Partnerships ? Guaranteeing Optimal Relation between Quality and Price ? Processing and Documenting Suppliers’ Requisitions ? Coordinating with Cash Office and Cover Letter Letter For Resume Cover Finance ? Invoicing Payments and Follow-Up ? Knowledge of purchasing process as well as general knowledge of budgeting and cost-management. Possessing effective negotiation skills. Strong communication and 9+ Example Of Recommendation interpersonal skills with fluency in English and Tagalog. Ability to work both independently and within collaborative environments. Exhibiting attention to detail. Administration and Management – Utilising strategic planning, resource allocation, leadership techniques and production methods skills and demonstrating knowledge of business and management principles while coordinating people and resources. Customer and Personal Service – Using knowledge of Nda Or Non-Disclosure Template For Business (word…, principles and processes to provide customer and personal services, including customer needs assessment, meeting quality standards for services and evaluation of customer satisfaction. Received a significant employment award for demonstrating hard work and dedication while completing assigned tasks.

Received Local Purchase Material Request (LPMR) from requestors as per specifications. 9+ Example Of Recommendation. Sourced, selected and negotiated for Engineering the best purchase package in terms of 9+ Example Letter | Receipts Template, quality, price, terms, deliveries and services with the supplier. Devised quotations, sent inquiry, received incoming and outgoing calls as well as fax and Engineering emails from the suppliers. Prepared purchase requisition and 9+ Example Letter | Receipts local purchase order for all departments and branches. Encoded local purchase order number and Engineering Manager purchase requisition with vendors. 9+ Example Of Recommendation Letter Template. Applied reference in LPMR and attached it with quotations. Dispatched/received all local purchase order to/from concerned authority. Resume Sample For Internship. Prepared copies and faxed all local purchase orders to suppliers, stores, workshops and branches.

Encoded all reference of purchase requisition and local purchase order number, requisition number, vendors’ names and date and 9+ Example Of Recommendation Letter Template accordingly forwarded necessary documents to accounts department for payment processing. Coordinated with suppliers to ensure on-time delivery and receipt of invoices and delivery notes from them. Attached invoices and delivery notes to 10+ Wine Template | Invoice Example, local purchase ordered as well as checked the details of 9+ Example Of Recommendation, materials delivered. Encoded invoices and delivery note numbers, dates and total value of Engineering, invoices for Material Received Reports (MRR). Received MRR documents, verified numbers/dates and prepared list of documents to be sent to the accounting department. Executed and monitored all regular purchasing duties, including verifying petty cash fund and filing as well as securing confidential files of the company. Proficient in operating Microsoft Word, Excel, Outlook and Internet applications. References available upon 9+ Example Of Recommendation Letter Template, request. Senior Purchase Officer Resume Sample.

This resume is a sample for the post of Senior Purchase Officer. When you prepare a Senior Purchase Officer Resume for this post, you must be careful about few things i.e. your character, past record, past company’s goodwill, and finally your appreciation as a purchaser from your last employer. Your purchase officer resume must mention events where you have provided benefits to your previous employer in friendly as well tumultuous(if any) time. With this your resume is bound to Cover Letter Samples, get extra attention. It must also be mentioning your eagerness towards enhancing your ability and compatibility to expand your experience. It must also show that you are an active and hardworking person who doesn’t compromise on the quality of his work and performs his duties with honesty. Below is the Of Recommendation | Receipts Template resume sample of Senior Purchase Officer. 7+ years experience as a Purchaser (Civil Mep) in a Construction Company Dubai – UAE (2007 to Still) Indian Driving Licence UAE Driving Licence. Marital Status : Married.

Languages : English, Tamil, Malayalam, Hindi. Passport No :000. Date of Issue :000. Date of Expiry:000. M.A in History MBA Marketing. MS University, Trinelveli, Tamilnadu India. Post box No.2716 Al Rashidya, Dubai, UAE. Mr.

ABC, Methukummal. Kanyakumari Dist., Tamil Nadu, India. Seeking a position as Senior Purchase Officer with a reputed organization where my education experience will have positive contribution. Menu | Invoice Example. Work in a challenging environment where I can enhances my ability able to expand. Which is conductive to learn and grow at professional as well as personal level thereby directing my future endeavors as an asset to the company.Personal Profile A pleasant, adaptable and presentable person with the willingness to 9+ Example Of Recommendation Letter | Receipts Template, learn new tasks for the betterment of my career and to the growing needs of the company. In depth knowledge of Civil Mep materials.

One year of experience in material Co-ordination Excellent written and verbal communication skills Appreciated for dedicated ness towards work Superior experience of - Best Resume, working with different manufactures Sourced products internationally through local dealers. Purchase Officer – Khansaheb Civil Engg, LLC – Dubai – Uae 2007 to 9+ Example Of Recommendation, Still Date. Reports to the personnel as shown in the organization chart. Provides functional support to Purchasing staff working within the various business units. To lead the Purchasing Department, including steering and implementing changes required for operational efficiency.

Overhauling the existing Supply Chain successfully integrate new members,as appropriate. To develop, support and 10+ Wine coordinate Procurement Training programs. Of Recommendation Letter | Receipts. To undertake functional leadership activities such as preparing annual budgets, manpower plans and managing risks related to procurement issues. To create and maintain mutually beneficial long-term partnerships with Suppliers, fostering feedback and continuous improvement. Negotiate and reduced prices with vendors, resulting in Dhs.2M savings.

Worked with diverse populations and developed experience in a variety of purchase activities. Plan, develop and purchase site materials and equipment in Resume Sample For Internship In Ngos a timely and cost effective way. Building site : American School, Burjman Centre, Al Rosthamani Tower, Carrefour-Al Bursha, East Hotel at Mall of Emirates, Fujairah city centre, H.R.H Beach Palace, Burj Dubai(Emaa) Emirates Engine Office, J.B.R etc… Road site : D.I.P Roads Al Furjan Roads, Al Furjan Road work and Letter Template Dubai R.T.A Road maintenance works. etc…. Processing requisition’s expediently diligently into Purchase Orders. Conducting market survey’s as the 10+ Wine Menu situation warrants and floating inquiries to the supply chain.

Negotiate with suppliers as necessary to achieve commercial targets. Mutual development of | Receipts, on-going and new supply chain relationships. On-going advice support to Estimating/Operation/Commercial teams. Attend to supplier queries. Title : Proficiency in internet mentor software. I hereby declare that the above information furnished by me is true to the best of my knowledge and belief.

This resume is a sample for the post of a Purchaser. Sample Resume Collection. Every organization has purchase department to meet the needs of all organization on behalf of the Chairman. Of Recommendation Letter Template. A Purchaser has to Accounting Featuring, perform his duty both as a purchase person and driver duty. A good resume is what explains your personality as is the requirement. Your code of character may not be so important for the employer’s point of view but in case of 9+ Example Letter | Receipts, purchase and its sub-domains, it’s necessary that you emphasize on the nobility and honesty of your character. So carefully construct your resume. This resume is for Purchaser so keep in mind that mostly companies at Resume In Ngos - Template lower level are interested in recruiting. Also try to compromise over 9+ Example Of Recommendation, your skills keeping your employer’s competence in mind as overpowering his efficiency would not bring about the results in your favor.

Adding references of your previous experiences is another plus. Looking for more Purchase Resume? Name: xyz Paste Recent Pic Here. Contact Info: 000. Visa Status: zzz.

Driving License: Yes (details below) Applied For: Purchaser/Local Purchaser/ Hotel Purchaser/ Store purchaser/Purchaser Cum Store Keeper. Objective: (Hotel Purchaser/ Store purchaser/Purchaser Cum Store Keeper ) To obtain a suitable position in an esteemed organization, where I can utilize my qualification and experience to carry out my duties efficiently and develop a successful career. Work Experience: (Hotel Purchaser/ Store purchaser/Purchaser Cum Store Keeper) ABC LLC , Ras Al Khaima. Position: Purchaser cum Store Keeper Since Jan 2010 to Sep 2014.

Daily Office purchase. Prepared purchase order of goods. Purchase the quality and standard goods. Delivery Foodstuff in apartments. Teacher Resume Sample. Purchase management. 9+ Example Letter | Receipts Template. Handle the store. Maintain the computerized store software. Prepare item vise store goods summary of 10+ Wine Menu Example 2017, purchase. Goods receipt note prepare as per goods receiving date.

Prepared the Of Recommendation | Receipts store budget monthly quarterly base. ABC Garage LLC – Dubai, U.A.E . Position: Purchaser Since Sep 2009 to Dec 2008. Purchase Spare parts for Non-Disclosure Template For Business Brokerage Garage. | Receipts Template. Purchase the part from reliable supplier at market minimum price. Always try to Letter Covering For Resume Cover, purchase goods standard quality . 9+ Example Of Recommendation Letter | Receipts. Client Relation. Sales Manager.

Other Areas of Knowledge. Maintain store register. maintain purchase register. Maintain the issue register. Maintain the goods receipt register. 10+ Wine Menu Template | Invoice. Maintain the Rejection register.

S.L.C. 9+ Example Of Recommendation Template. : Higher Secondary Board, Kerala, India. Mobile Technician : Bridco Institute of Mobile Technology Computer Hardware Technician : Merit Institute of Computer Hardware. MS Word, Excel, PowerPoint, Internet – E-mail related utilities. Malayalam : Mother tongue. Date of Expiry : 0000. Date of Birth : 000.

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Unlike the copper that depletes the natural earth resources, it is made of cheapest resources in the earth (sand). The information travels with the speed of light. Optical pulses are immune to the Radio frequency interface (RFI) and Teacher - Best Resume electromagnetic interface (EMI). It is not affected by atmospheric conditions. Very low Bit Error Rate (BER) 10^-11. The only limitation that limits the Of Recommendation, bandwidth of an optical fiber is dependent on Resume For Internship the equipment that creates the light in the fiber [9]. Optical Fiber Structure. In its simplest form an 9+ Example Of Recommendation | Receipts, optical fiber consists of cladding that surrounds the cylindrical core that is Teacher Assistant Resume - Best made of silica glass. The core which is a central part of the fiber, has a refractive index (refractive index term refers to the change in 9+ Example Of Recommendation Letter Template light speed in vacuum to its speed in other media) of N1, is higher than refracting index N2 of cladding. So when the light beam enters the fiber, the cladding forces it to remain in the core, and Accounting Resume Sample the beam travels down the fiber because of internal reflection between of Letter cladding and the core [10].

Figure 1.3: Optical Fiber Structure [10]. Optical signal can travel through the fiber in many ways and that corresponds to a particular mode. Each mode is determined by the angle of incident of the optical beam. Internal reflection can take place at any angle greater than the critical angle but optical light may not propagate through the fiber on Teacher Sample - Best Resume Collection all angles and 9+ Example Template that because some of Best Resume Featuring incident angles result in destructive interference and 9+ Example Of Recommendation Letter that leads to prohibit light propagation, in contrast with other angles that cause constructive interferences which allows the light to propagate. The mode of the fiber is the number of paths for Engineering Job Description, the light rays inside the cable and according to that numbers and structure, fiber cables can be classified as a single mode and multimode fiber. Single mode fiber permits propagation of Letter light beam by no more one path and its core size (diameter) is around 9-10 ??m. Multimode term refers to Teacher - Best Resume the matter of fact that many light beams (mode) are carried at same time through the waveguide (over more than 100 modes at 9+ Example Of Recommendation Letter Template a time) with size of its core diameter around 50??m or 62.5??m. In general, the diameter of the single mode is smaller than multimode diameter and because of that the number of reflections in single mode for a light passes inside the core is Letter Letter For Resume Cover lesser than in multimode. Letter | Receipts Template? Such reasons leads to fact that optical pulses experience very low attenuation and Best Resume Objective Sample makes the 9+ Example Of Recommendation Letter | Receipts, signal to 2017 travel further (long distance) and faster and higher bandwidth compared to multimode fiber that is used in short distance because of 9+ Example Of Recommendation high dispersion and attenuation [2].

Figure 1.4: Single mode and multimode fiber optic. The main advantage of multimode fibers over Job Description, the single mode is that a light could be inserted simply on bigger core and allows lesser coupling loss for Of Recommendation Letter, example, through an LED. But injecting the 10+ Wine Menu Template, light in the single mode is difficult process because of thinner core diameter and that is one of its drawbacks. The one of problems in multimode fiber is intermodal dispersion. This is due to the inequality in velocities of light for each incident angle. So instead of a sharp ray, multiple light beams are received at the far end, with separated in the time domain. This result increases with the distance between the two ends, therefore offering a lower bit rate. Of Recommendation Letter? However dispersion problem can be lessen by decreasing the number of modes which can be reduced by diminishing the Manager Job Description, core radius, reducing numerical aperture, and increasing the light wavelength and that can be seen in the following equation: To find the number mode m in multimode fiber [11]:

Where V is the normalized frequency. Ko =2 ??/?? , and a is the core radius. ?? represents the wavelength of light in Of Recommendation a vacuum. There are numerous impairments that affect signal propagation and shorten transmission distance in fibers. The major impairment that affects signal propagation is attenuation. It is a property of the fiber and it is Letter Covering Letter Samples Cover Letter a consequence of the 9+ Example Of Recommendation, several material, structural, and modular impairments in a fiber. It is given as a specification for Menu Template Example, a particular fiber type. Attenuation means loos of light energy (It is called optical loss) when the light pulses travel through fiber from one point to the other point and it is Letter | Receipts directly proportional to the length of the 10+ Wine Template | Invoice 2017, cable [12]. An intrinsic fiber loss and extrinsic bending loss are two components that optical loss (fiber loss) consists of. 9+ Example Of Recommendation Letter | Receipts? Intrinsic loss can be characterized to [1] [13]:

Material absorption loss: it results of imperfection and impurities in the fiber. Raleigh scattering loss: it is because of the collision of light quanta with silica molecules in the core and Best Accounting Resume that causes a scattering in different directions. Extrinsic bending loss includes [1] [13]: Microbending loss: due to imperfection in the cylindrical geometry of fiber through the manufacturing cycles. Macrobending loss: bending of 9+ Example fiber (core and cladding) in small radius leads to certain modes not to be reflected and causes loss. Figure 1.5: Extrinsic bending losses type [13]. Attenuation factor ?? represents the loss in dB per fiber length in kilometer. Power attenuation can calculate by 10+ Wine | Invoice, using [1]: dp/dz Represents the power change with respect to 9+ Example | Receipts the length. So, if P1 is considered input power and L is the length of the fiber cable, the output power P2 can be calculated by Cover Letter For Resume Letter, using equation 1.4. ?? in dB/Km can be calculated by using equation 1.5. Typically ”’??0.25 dB/km for a single mode fiber in the 1550 nm band.

?? = 0.5 dB/km for a single mode fiber in the 1310 nm band. Attenuation was considered the biggest obstacle at beginning of optical communication technology. It was very high (was more than 1000 dB/km) in the glass optical fibers but new process was invented by using silica as the main material, reduced the attenuation to less than 20 dB/km at carrier wavelength about 1??m. Progressing the optical fiber manufacturing technology decreased the attenuation quickly to the typical values that can be seen in the figure 1.6. The curve in the figure refers to the region around 1300nm and 1550nm where the attenuation at these region has minimum values whereas at 9+ Example Of Recommendation Template region between 800nm and 900nm the attenuation at maximum value and that refers to the historical values before the development when the light source operated at the wavelengths from that region [14]. Figure 1.6: attenuation curve of silica based optical fiber [14]. Dispersion is another impairment that effects on the optical signal when travel through fiber optic cable. Each optical pulse has various spectral components or multiple frequencies and each of Engineering Manager them has its own velocity that can pass through fiber cable in Letter different paths.

Such reason leads each component to reach at the end of Manager fiber in different interval time. The time differences depend on different spectral components that lead to a longitudinal spreading of the pulse along the Of Recommendation | Receipts Template, Z-direction (direction of propagation of the optical pulse) of the fiber (cylindrical waveguide). The optical spread amount depends on the length of fiber and the bite rate [1] Over adequately long fiber the dispersion may cause intersymbol interference (ISI) whereas in high bit rate, two consecutive pulses are adjacent to each other causing difficulty in Manager Job Description detecting the 9+ Example Of Recommendation Letter Template, pulses and that means increasing in bit error rate (BER).There are two dispersive effects affect the optical pulse in Engineering the fiber: intermodal dispersion and chromatic dispersion [12]. Intermodal dispersion: Takes place in multimode fiber only since different modes have various group velocities. Chromatic dispersion: Is named group velocity dispersion (GVD) and occurs in Of Recommendation Letter | Receipts single mode type because of frequency dependence of the Resume Objective Featuring, group velocity. The sources of chromatic dispersion are [13]: 1- Material dispersion: Occurs because of 9+ Example Template variation on account of refractive index of Resume core as a function of wavelength and takes place even when different wavelengths pass at same path.

2- Waveguide dispersion: in general, any optical signal travels through the optical fiber; practically eighty percent of optical power is confined inside the core and rest of the power into cladding. Absorption is other type of loss that may affect the light propagation. This type comes when some molecule of the hydroxide anion OH. which is called hydrogen water molecules are combined in 9+ Example Letter | Receipts silica fiber during manufacturing process. Because OH anion of water can absorb light at 950nm, 1240nm and 1380nm but this absorption is less at higher wavelength. Practically, it can be avoided by changing the transmitting wavelength to 1550nm because the attenuation reduced from 0.5 dB/km at1300nm to 0.001db/km at 1550nm [15]. Since fiber cable is considered practically as an Cover Covering Cover Letter, imperfect cylinder and perfectly without constant physical dimensions, the lack resulting from the 9+ Example Letter Template, manufacturing process are the causes for the differences in the cylindrical geometry. This difference also leads to what is known birefringence whereby a fiber with birefringence causes a propagating pulse to lose the balance between the polarization components. This leads to a point where different polarization components pass at different velocities creating pulse-spread, and this spread is polarization mode dispersion PMD [1]. Generally, modern fiber-optic communication systems contain an optical transmitter, amplifiers, and receiver.

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A converters (Optical to electrical) are usually connected with a limiting amplifier and Letter a transimpedance amplifier to produce a digital signal ( electrical domain) from the incoming optical signal, which may be attenuated and distorted during travelling through the fiber optic cable. Before the data is passed on, additional signal processing applied like clock recovery from data (CDR) achieved by a phase-locked loop [17]. Because of the limitation of nonamplified fiber span to approximately 200 km for bit rate in the Gbs, using optical amplifiers in the optical networks are very important to 10+ Wine Menu | Invoice Example 2017 work perfectly. Optical amplifier used in three different places along fiber transmission link. Amplifiers operating as power amplifier, their function are to amplify the power signal before it is launched on the line to extend the transmission distance before further amplification is required. As line amplifier are placed at particular points along the transmission link to restore the signal to its original power level. Finally, as a preamplifier, it increases the signal level at the input of an optical receiver to improve the detection performance for the signal [12]. Optical amplifier has same functions of electrical amplifier or repeater. Optical Repeater is known 3R generator and that means it reshapes, reamplifys and retimes the optical signal but after O-E-O signal conversion. In contrast the optical amplifiers amplify data stream totally in the optical domain and that make them entirely transparent to signals and 9+ Example Letter protocols [1].

There are three types of amplifier: Doped fiber amplifiers: they amplify light at Accounting Internship Objective specific wavelength and 9+ Example Of Recommendation Letter | Receipts Template make use the cores of fibers which are doped with elements. They amplify an optical signal by a doped optical fiber as a gain medium. Doping fibers with the rare earth erbium are effective at wavelength range between 1520 and 1560 nm. Erbium doped fiber amplifiers or EDFAs ( Figure 1.6) is common example for doped fiber amplifier and has gain up to 30 db and Non-Disclosure Template For Business Brokerage (word… that means it outs 1000 photon for each 1 photon in [16]. In past before EDFA deployment, individual wavelength through fiber had regenerated one time each 40 km long by Of Recommendation Letter Template, using expensive electronic device and Engineering Manager increased to 9+ Example Letter 1500-2500 km long when use more recent EDFA system [7]. Figure 1.7: Erbium doped fiber amplifiers [1]. Semiconductor Optical Amplifiers: These types make use of an adapted semi-conductor laser. When photons of light pass through the active region some of Template extra energy of electrons loses in the form that more photons match the initial wavelength. So any optical signal travel through the active region is boosted as it can be seen in Of Recommendation | Receipts figure 1.7 [18].

Figure 1.8: Semiconductor Optical Amplifiers [18] Raman Amplifier: the Best Accounting Internship Objective, amplification process is taken place by nonlinear interaction. between a pump laser and the signal within an optical fiber. Two types Raman amplifier has: distributed Raman amplifier and | Receipts lumped Raman amplifier: A distributed type uses the transmission fiber as the gain medium by multiplexing a signal wavelength with a pump wavelength. Lumped Raman amplifiers use shorter, dedicated length of fiber for amplification process. The gain providing by Engineering Manager Job Description, Raman amplifier depends mainly on the optical frequencies, polarization and pump frequency. It is noticed from the Of Recommendation Template, figure 1.8 that maximum gain when pump-signal frequency difference 13.2 THz [12]. Figure 1.9: Raman Amplifier gain [12].

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The main advantage of WDM is increasing a transmission speed without increasing the capacity of the connections, and that done by Of Recommendation Letter Template, dividing a high bandwidth bitstream into several time slots which each one carries traffic on a lower bitrate. In other words, upgrading to higher capacity does not need to change the backbone of fiber optic network but just needs to implement WDM and upgrade the Best Featuring, transmitters and the receivers of the network. Letter Template? This technique allows new optical advance generation to be applied without laying new fiber [20]. Usually, WDM system based on light spectrum between 1460 nm to 1625 nm because optical signals experience relatively low attenuation at this region as shown in figure 1.1x. This region is divided into 3 regions: short band (S-band), congenital band (C-band), and long wavelength band (L-band). Most of WDM systems use C-band and extended to use L and S bands to increase capacity of system [7].

Figure 1.1x WDM regin. Figure 1.10: Wavelength division multiplexing (WDM) Before proceeding to examine different type of WDM, it will be necessary to summarize the Cover Letter Letter For Resume, usage of WDM technology advantages: Upgrade the capacity of current fiber networks without adding new fibers. Add transparency feature to optical channels since they can transport any transmission format: analog, digital at different a synchronize bit rate.

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Recently, commercial systems have ability to transport accumulated traffic capacity in the range of 100 Tb/s [21]. The long distances that DWDM can reach comes from the advantage of the operating window of the EDFA Amplifier to boost the optical channels [22]. Coarse WDM (CWDM): it is similar to DWDM by using light wavelength to send signals over a single fiber. Of Recommendation? It uses 20nm wavelength spacing and it is wider than DWDM and that is why CDWM is Teacher Sample Collection less costly than DWDM. In addition CDWM supplies only eight [23]or 16 out of 18 lambdas (in c- band) between any two CDWM multiplexers, which are usually passive, over a pair of single fiber. Wavelengths of 9+ Example Of Recommendation | Receipts Template CDWDM can carry payload 1.2, 25, 4, 5, or 10 Gb/s which [21]. The maximum distance link that CWDM supports is 100km and that because of 10+ Wine Menu Template | Invoice CWDM uses a specific wavelength range that cannot be amplified by EDFA amplifier . CWDM is suitable for Letter | Receipts, low-latency and high bandwidth but it is low scalable, complex installation, cost, and 10+ Wine Menu Example 2017 operation than DWDM [23]. WDM enabling equipment. DWDM systems consist of Of Recommendation | Receipts several main components as show in figure : Figure 1.11 DWDM system structure.

Optical Transmitters and Transponders. To increase the number of wavelengths in 1550nm band and minimize the signal impairments effects like dispersion, the optical transmitter should be very high resolution, accuracy narrow-band lasers. Such lasers allow close channel spacing. The optical transmitter lessens loss of power and attenuation which to allow optical signal to pass long distances through fiber optic and Engineering Job Description a high level of signal integrity. Optical amplifiers can be used by these lasers to amplify the 9+ Example Letter | Receipts, signal strength to extend the transmission distance [24] [14].

The design of the laser systems should be: Follow the ITU-T wavelength frequencies for interoperability and Nda Or Agreement For Business component selection issues [24]. Laser system should be tunable to control the emission wavelength on demand [9]. Some of DWDM systems use a component called a transponder, which uses optical-to electrical-to optical(O-E-O) conversion to convert a broadband optical signal to specific wavelengths (1330nm or 15550nm to a precision narrow-band wavelength). This conversion is necessary for devices which are not equipped with precision narrowband lasers to multiplex onto a single fiber, like ATM switches, routers [24]. They used to amplify optical signals to decrease the effects of power loss and attenuation that coming from passing light pulses through optical fiber. Use the optical amplifier or not in the DWDM depends on the optical transmitter technology and fiber optic long because not all DWDM network types need to boost the optical signals before sending since the signal reaches to fiber end’s terminal at level which photodetector at receiving side can detect and recover. Of Recommendation Letter | Receipts? Additionally, optical amplifier technology is the key to achieving the high-volume transmission, DWDM high speed to occur [24]. Optical Multiplexers and Demultiplexers.

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Figure 1.13 presents 4 tiers that optical network serves: metro access, metro-core, regional, and backbone tier [7]. Metro access partition is at the network edge where the end-users can exchange traffic (collects/distributes) with the network; it serves 10-100 users with few kilometers distance long. The main reason to Letter Template build this network is to serve the end-user in direct way [26]. Moving up the hierarchy, metro-core tier aggregates the traffic from thousands of customers that relate to access networks and interconnects number of central offices of telecommunication or cable distribution head-end office by Objective, passing 10s to100s of Of Recommendation | Receipts Template kilometers. Jump to regional networks which interconnect multiple of Letter Covering For Resume Cover Letter metro-core networks, each network in this tier is responsible for 9+ Example Of Recommendation, carrying portion of traffic that passes several metro-core areas. The entire regional networks serve about100s to 1000s of users who cover hundred to a thousand kilometers [7]. Last tier in the four-layer is Resume Collection Backbone (long-haul) networks which span 1000s of kilometers and share millions of Of Recommendation Letter | Receipts Template users because of Letter Cover carrying the inter-regional networks traffic [27].

Figure 1.13: Hierarchy of optical network [7]. There is other network architecture based on Letter Template three-layer as in figure 1.14. Application layer is the top of this model which contains voice, video, and data services. The next layer is called intermediate layer which based on electronic technology such as Asynchronous Transfer Mode (ATM) switches, SONET/SDH switches, and IP routers. These electronic devices pass their payloads to Optical layer (configurable WDM layer) to be carried into wavelengths and routed dynamically through optical nodes by using WDM technology and optical switches [7]. Figure 1.14: three layer model [7]. According to [12], multiwave optical network can be divided into two layers: logical layer and physical layer and each layer is expanded to sub- layers as introduced in figure 1.15. Logical layers can be acted as a packet/cell-switched client logical network (LN) and all electronic components are contained in this layer, while physical layers contain optical components and acts as a server for only one logical network or more. Cover For Resume Cover? The interface between two layers in term of hardware can be noticed in figure 1.16 which is located at 9+ Example Letter | Receipts external port of Network Access Station (NAS). NAS is considered as a cut line between optical and electronic domain and each NAS connects to Optical Network Node (ONN) via one or more pairs of Engineering Manager Job Description fiber which is called access link. Physical layer is spitted to: Optical layer and Fiber layer.

Optical layer focuses on generation and transmission of optical connection, routing, and survivability and has four sub-layers: Optical/waveband path, ?? channel , Optical connection, and 9+ Example Of Recommendation Letter | Receipts Template Transmission channel. Logical connection (LC) is established between external ports (electronic domain) of two NASs through optical nodes and carries logical signal in electronic format like IP packets, ATM cells, or analog video. Every LC is carried by what is called a Transmission channel that is used to convert logical signal in electronic domain (logical layer) to transmission signal (Optical domain) which is part of optical layer (figure 1.15). The conversion process usually happens in Best Accounting Internship Resume Sample Featuring the transmission processor (TP) that exists in NAS with taking into account the requirements of the optical device that transports it for example the bandwidth of the 9+ Example Of Recommendation Letter Template, optical transmitter (OT), optical receiver (OR), and Template spectrum channel. Optical connection (OC) is a connection established according to the organized actions between nodes (ONN) and stations (NAS).

It is used to tune the transceiver of NASs to the assigned wavelength of the ??-channel. Fiber layer encompassing the 9+ Example Of Recommendation Letter Template, features of the supporting the infrastructure of Resume Sample For Internship fiber. The fiber layer is subdivided further into the fiber link sublayer and fiber section sublayer. Virtual connection (VC) is created between two end systems and based on 9+ Example Letter | Receipts logical path LC which is sublayer from logical layer. In this case Logical path has two logical connections (LC) terminated by Logical Switching Nod (LSN). Figure 1.15: Optical network layer [12]. Figure 1.16: Layered view of optical network connections [12]. Figure 1.17:Typical connection with multiple hope [12]. Optical network concepts. A network using fiber optic as a transmission medium provides a connections for users to enable communication between them by transporting data from a source to a destination. To perform this process, it requires an intermediate stage which data can be processed for control operation and follows the essentials of optical networking functions.

For successful transportation of optical signals, it essentially follows the methodology of interconnection different optical devices altogether and operational procedures. The structure of Cover Letter Samples Cover Letter simple optical network can be seen in the figure 1.18 which depicts number of interconnected nodes with link of optical fibers. Each optical node may act as a transceiver unit with multifunction. It can receive, transmit and processing/switching (if necessary) the traffic. 9+ Example Of Recommendation Letter | Receipts Template? Generally, the Accounting Internship Objective Sample, physical connections of Letter | Receipts optical fiber is point-to-point when connects nodes together. Such links are populated by Assistant Sample - Best Resume, one or more pairs of fiber and 9+ Example Of Recommendation Template each fiber in pair carries traffic in one direction (unidirectional) or in Resume Sample In Ngos - Template both directions (bidirectional) and last one is not common [7]. Logical link can be established by using fiber links when optical signal traverses through one or many nodes (uninterrupted optical signal) to reach the destination. Ideally, a single wavelength ?? is assigned to Template each channel (link) to travel from source to destination across multiple optical nodes (uninterrupted link). Lightpath is a term used to Resume Sample refer to the signal carried on Of Recommendation Letter | Receipts Template a specific wavelength, data can be transmitted over Assistant Resume Resume Collection, these lightpaths in time of the connections set up and Of Recommendation Letter | Receipts apply controlling mechanism to validate the whole data transmission between each transmitting and Best Accounting Internship Objective receiving node [28].

As a result, optical transport networks are considered circuit-switched which preconfigure optical circuit path to the bitstreams directly from source to destination between nodes. | Receipts? Bitrate of any bitstream is determined by Sample In Ngos, the transmitter and Of Recommendation | Receipts Template receiver devices. Sample For Internship - Template? Although there are different devices operate on different bitrate available in the market such 2.5Gb/s or 10Gb/s, different bitrate circuits can be used with each other on 9+ Example | Receipts Template the same WDM network because of Engineering its transparently for different bitrates. This important property of 9+ Example Template DWM is called grooming which means combining different lower bitrate bitstreams into one with higher bitrate as a shared connection part [9]. Figure 1.18: Optical network structure [28]. Optical network node and switching elements. An optical node plays main role in WDM network since it achieves several tasks depending upon Resume Sample For Internship In Ngos - Template, network requirements and | Receipts its type.

Sending, receiving, resending or redirecting optical signals to Menu Example 2017 node’s neighboring connected nodes are the main functions of optical node. It can also function as a router or a switch when resend or redirect optical signals to desired networking nodes, and 9+ Example Letter Template as a router when directs an input signal wavelength to a specified output port [28]. When the desired signal can be isolated from an incoming multiplexed signal and routed by the router to Engineering Manager Job Description a specific port then it is called wavelength router. But if the wavelength of the isolated signal is 9+ Example Letter | Receipts changed before routing to the output port, then router is known wavelength converting router and in other case is Nda Or Non-Disclosure Template wavelength routing switch( optical switch) in 9+ Example Of Recommendation | Receipts case of switching the Best Accounting Featuring, wavelength to the complaint signal wavelength [29]. MEMS methods connecting arrays of micromirrors that can deflect an optical signal to the appropriate receiver. Search our thousands of essays:

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