Laser phase-noise reduction in a self-homodyne optical link

Peter Thomas Johnson; Judith Hankey

doi:10.1117/12.21959

1 September 1990 Laser phase-noise reduction in a self homodyne optical link

Peter Thomas Johnson, Judith Hankey

Proceedings Volume 1314, Fibre Optics '90; (1990) https://doi.org/10.1117/12.21959
Event: Fibre Optics '90, 1990, London, United Kingdom

Abstract

Laser phase noise manifests itself as a degradation in SNR or BER in coherent optical communication systems. Real systems, particularly those employing phase modulation, often require sub-megahertz linewidth sources to perform satisfactorily. Experimental laboratory systems offer greater flexibility in their realisation and in this paper a novel technique is described to reduce the effective linewidth of semiconductor lasers, which is appropriate to such laboratory experiments.

Citation Download Citation

Peter Thomas Johnson and Judith Hankey "Laser phase-noise reduction in a self homodyne optical link", Proc. SPIE 1314, Fibre Optics '90, (1 September 1990); https://doi.org/10.1117/12.21959

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