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

Three-channel coherent frequency-shift-keying (FSK) transmission experiments using in-line semiconductor laser amplifiers under the influence of nondegenerate four-wave mixing in laser amplifiers are discussed. The experiments show that the effect of four-wave mixing is reduced by applying modulatio...

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Veröffentlicht in:	Journal of lightwave technology 1989-10, Vol.7 (10), p.1525-1529
Hauptverfasser:	Ryu, S., Mochizuki, K., Wakabayashi, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Degradation Exact sciences and technology Four-wave mixing Frequency shift keying Nonlinear optics Optical amplifiers Optical mixing Optical modulation Semiconductor lasers Semiconductor optical amplifiers Stimulated emission Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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Zusammenfassung:	Three-channel coherent frequency-shift-keying (FSK) transmission experiments using in-line semiconductor laser amplifiers under the influence of nondegenerate four-wave mixing in laser amplifiers are discussed. The experiments show that the effect of four-wave mixing is reduced by applying modulation to the interfering carriers and enlarging the frequency separation of each carrier. However, transmission quality degradation becomes serious in multistage amplifier systems.< >
ISSN:	0733-8724 1558-2213
DOI:	10.1109/50.39093