New method for reducing distortion in directly modulated lasers in subcarrier-multiplexed systems

Frederick V. C. Mendis; Manas K. Haldar; Jian Ping Wang

doi:10.1117/12.227834

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1 December 1995 New method for reducing distortion in directly modulated lasers in subcarrier-multiplexed systems

Frederick V. C. Mendis, Manas K. Haldar, Jian Ping Wang

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Proceedings Volume 2614, All-Optical Communication Systems: Architecture, Control, and Network Issues; (1995) https://doi.org/10.1117/12.227834
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

In this paper we use small signal analysis to predict the intrinsic non-linear distortion of an injection-locked semiconductor laser diode directly driven by two subcarriers. We show that the second-order harmonic distortion may be reduced by between 12 and 27 dB over the free- running laser bandwidth of 3.4 GHz and that the third-order intermodulation distortion may be reduced by between 12 and 22 dB over a bandwidth of 5 GHz, for an injection ratio of 0.5.

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Frederick V. C. Mendis, Manas K. Haldar, and Jian Ping Wang "New method for reducing distortion in directly modulated lasers in subcarrier-multiplexed systems", Proc. SPIE 2614, All-Optical Communication Systems: Architecture, Control, and Network Issues, (1 December 1995); https://doi.org/10.1117/12.227834

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