Abstract

The effect of adjacent channel interference on the frequency modulated wavelength division multiplexing (FM-WDM) optical communication system is analyzed in this paper. This system uses injection-locked optical discriminator at the output for the demodulation of FM channels. Adjacent channel interference results in crosstalk in the FM-WDM communication system which has been calculated. Dependence of crosstalk on the channel spacing, received signal power in a particular channel, and linewidth enhancement factor of the slave laser incorporated in the optical discriminator has been numerically investigated. The injection-locked discriminator has a typical output crosstalk level of 50 dB for a channel spacing of 100 GHz with optical injection level of 30 dB into the slave laser and is a suitable subsystem to be used in FM-WDM communication system.

[IEEE ]

Joint Channel Estimation, Interference Mitigation, and Decoding for WDM Coherent Optical Communications

Frederic Lehmann, Petros Ramantanis, and Yann Frignac
J. Opt. Commun. Netw. 6(3) 315-325 (2014)

Method of carrier frequency arrangement for suppressing the adjacent channel interference caused by camera nonlinearity during LED-multispectral imaging

Shuangshuang Ma, Gang Li, Yaping Ye, and Ling Lin
Appl. Opt. 61(11) 3240-3246 (2022)

Amplitude modulation of an injection-locked semiconductor laser for heterodyne-type optical communications

K. Kikuchi, T. Okoshi, and S. Tanikoshi
Opt. Lett. 9(3) 99-101 (1984)

Adjacent crosstalk suppression in a colorless WDM passive optical network

Kwanil Lee, Chul Han Kim, Ju Han Lee, Young-Geun Han, Sil-Gu Mun, Chang-Hee Lee, and Sang Bae Lee
Opt. Express 15(22) 14306-14312 (2007)

12.5 Gb/s multi-channel broadcasting transmission for free-space optical communication based on the optical frequency comb module

Jun Tan, Zeping Zhao, Yuehui Wang, Zhike Zhang, Jianguo Liu, and Ninghua Zhu
Opt. Express 26(2) 2099-2106 (2018)