Bit-Error-Rate Degradation Due to Inter-Channel Crosstalk of Different Signal Format

Naruki SHINOHARA  Koji IGARASHI  Kyo INOUE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E102-B   No.5   pp.1000-1004
Publication Date: 2019/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2018EBP3164
Type of Manuscript: PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
inter-channel crosstalk,  bit error rate,  modulation format,  probability density distribution,  

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Summary: 
Inter-channel crosstalk is one of the crucial issues in multichannel optical systems. Conventional studies assume that the crosstalk and the main signals have identical format. The present study, in contrast, considers different signal formats for the main and crosstalk lights, and shows that bit error degradation is different depending on the modulation format. Statistical properties of the crosstalk are also investigated. The result quantitatively confirms that a crosstalk light whose signal distribution is closer to a Gaussian profile causes larger degradation.