YOĞUN DALGABOYU BÖLMELİ ÇOĞULLAMALI GİGABİT PASİF OPTİK AĞLARDA DÖRT DALGA KARIŞIMININ YUKARI YÖNLÜ HAT PERFORMANSINA ETKİSİ

Yıl 2018, , 189 - 204, 24.04.2018

Abbas Yuldurum Saleh Saleh Sait Eser Karlık

https://doi.org/10.17482/uumfd.345082

Öz

Dört dalga karışımı (FWM) optik fiberli ağların
performansını şiddetli biçimde sınırlayan önemli bir doğrusal olmayan etkidir.
Bu makalede, standart tek-modlu fiberler (SSMFs) kullanan yoğun dalgaboyu
bölmeli çoğullamalı gigabit pasif optik ağların (DWDM-GPONs) yukarı yönlü hat
performansı üzerindeki FWM etkisi incelenmiştir. Kanallar arası boşluk
değerleri 12.5 GHz, 25 GHz, 50 GHz ve 100 GHz olan 7-, 15-, 29- ve 35-kanallı DWDM-GPON sistemlerinin yukarı
yönlü hat merkez kanalları için benzetimler yapılmıştır. Yukarı yönlü hat
performansını değerlendirmede, FWM etkisi nedeniyle oluşan işaret çapraz
karışım oranı (SXR) değişimleri dikkate alınmıştır. Benzetim sonuçları, FWM
etkisi altındaki sistem performansının en kötü hal değerlerini sergilemekte ve
bu nedenle, mevcut GPON uygulamalarında FWM etkisi altındaki sistem
güvenilirliğini gösteren uygun bir değer olan minimum 23 dB SXR kriterini sağlayan sistem
parametrelerinin seçimi için önemli ipuçları sergilemektedir.

Anahtar Kelimeler

Dört dalga karışımı, Yoğun dalgaboyu bölmeli çoğullama, Gigabit pasif optik ağ, Optik fiber, Yukarı yönlü hat

Four-Wave Mixing Impacts on The Uplink Performance of Dense Wavelength Division Multiplexing Gigabit Passive Optical Networks

Öz

Four-wave
mixing (FWM) is an important nonlinear effect severely limiting the performance
of optical fiber networks. In this paper, FWM impact on the uplink performance
of dense wavelength division multiplexing gigabit passive optical networks
(DWDM-GPONs) using standard single mode fibers (SSMFs) has been analyzed.
Simulations have been carried out on the center uplink channels of 7-, 15-, 29-
and 35-channel DWDM-GPON systems that have 12.5 GHz, 25 GHz, 50 GHz and 100 GHz
channel spacing values. Signal-to-crosstalk ratio (SXR) variations occurring
due to FWM impacts have been considered in evaluating the uplink performance.
Simulation results exhibit worst-case values under FWM impacts and therefore are
important in giving clues about choosing system parameters satisfying a minimum
23 dB SXR, which is an appropriate value for current GPON applications showing
system reliability under FWM impacts.

Anahtar Kelimeler

Four wave mixing, Dense wavelength division multiplexing, Gigabit passive optical network, Optical fiber, Uplink

Kaynakça

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