Influence of nondegenerate four-wave mixing on coherent transmission systems using in-line semiconductor laser amplifiers

Shiro Ryu, Kiyofumi Mochizuki, Hiroharu Wakabayashi

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

An all-optical network using semiconductor laser amplifiers as optical repeaters is very attractive because it provides bit-free long-haul optical transmission lines. However, when frequency-division-multiplexed (FDM) signals are incident on the laser amplifier, undesired lights are generated by nondegenerate four-wave mixing (NDFWM) between neighboring channels, so that transmission characteristics of the coherent system are degraded. The authors report the results of three channel coherent FSK transmission experiments with inline laser amplifiers and describe the influence of NDFWM on the system performance. It is shown that in the multistage amplifier system, undesired light power due to NDFWM accumulates, and this causes serious degradation. The influence of NDFWM on the system penalty is reduced when each carrier has a widely spread spectrum.

Original languageEnglish
Number of pages1
Publication statusPublished - 1 Dec 1989
EventOptical Fiber Communication Conference: Summaries of Papers - Houston, TX, USA
Duration: 6 Feb 19899 Feb 1989

Conference

ConferenceOptical Fiber Communication Conference: Summaries of Papers
CityHouston, TX, USA
Period6/02/899/02/89

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Ryu, S., Mochizuki, K., & Wakabayashi, H. (1989). Influence of nondegenerate four-wave mixing on coherent transmission systems using in-line semiconductor laser amplifiers. Paper presented at Optical Fiber Communication Conference: Summaries of Papers, Houston, TX, USA, .