Research on The Performance of a Novel Dual –an Optical Access Passive Optical Network System with ODB and NRZ Downstream Signals

XINGPING JI, YUFENG SHAO*, JIANJUN WANG, YUE ZHOU, CHANGXIANG LI, JUNYI ZHOU

Abstract


A novel optical access system with optical duobinary (ODB) and non-return to zero (NRZ) downstream signals is proposed and analyzed: the center carrier frequencies of two downlink signals with of 193.07GHz and 193.13GHz. By comparing the optical spectrum diagrams, electrical diagrams and eye diagrams before and after downstream transmission over 20km single mode fiber (SMF), it is proved that the optical spectral efficiency of ODB downstream signals is narrow, and the bit error rate (BER) of NRZ signals is lower. The results demonstrate the two signals have their own advantages in optical access system, and users can choose according to the actual needs.

Keywords


Optical Access System, Optical Duobinary, Non-Return To Zero, Bit Error Rate


DOI
10.12783/dtcse/iceiti2017/18891

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