CHROMATIC DISPERSION COMPENSATION IN SINGLE MODE FIBER USING DCF

Yıl 2004, Sayı: 007, 129 - 142, 15.12.2004

Ahmet Altuncu

Öz

Abstract. In this study, compensation of chromatic dispersion induced pulse broadening occured during linear pulse propagation in standart single mode fiber (S-SMF) and non-zero dispersion-shifted fiber (NZ-DSF) is shown by simulation using dispersion compensating fiber (DCF). For this purpose, Nonlinear Schrodinger Equation (NLS) that characterizes pulse propagation in optical fiber is numerically solved in Matlab using split-step Fourier method and the simulation results were shown grafically in 3-D format. By the simulations realized, the optimum DCF length required to compensate chromatic dispersion induced pulse broadening in S-SMF and NZ-DSF transmission fibers having typical parameters was found. In addition, pulse narrowing to the initial value occured in DCF fiber was shown by simulations.

Anahtar Kelimeler

Fiber Optical transmission, Dispersion Compensation, Dispersion Compensating Fiber (DCF)

TEK MODLU FiBERDE KROMATiK DiSPERSiY.ONUN DCF iLE KOMPANZASYONU

Öz

Bu cahsmada, standart tek modlu fiber (S-SMF) ve sifir olmayan dispersiyonu kaydmlrrus fiberde (NZ-DSF) Iineer darbe propagasyonunda olusan kromatik dispersiyon kaynakh darbe genislemesinin, dispersiyon kompanzasyon fiberi (OCF) kullantlarak kompanzasyonu simUlasyonla gosterilmektedir. Bu amacla fiberde darbe propagasyonunu karakterize eden Nonlineer Schrodinger Denklemi (NLS) Matlab ortanunda bolunmus-adimh Fourier metodu ile nUmerik olarak eri:izUlmU~ve simUlasyon sonuclan 3-D ortamda grafiksel olarak  goruntulenmistir, Gerceklestirilen simulasyonlarla tipik parametrelere sahip S-SMF ve NZ-DSF iletim fiberlerinde dispersiyon kompanzasyonu icin gereken OCF'nin optimum uzunlugu bulunarak, kromatik dispersiyon nedeniyle iletim fiberinde artan darbe  genisliginin, OCF fiberinde azaIarak baslangic degerine dU~tUgUgosterilmektedir,

Anahtar Kelimeler

Fiber Optik iletiJim, Dispersiyon Kompanzasyonu, Dispersiyon Kompanzasyon Fiberi (DeF)

Kaynakça

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