Performance analysis of subcarrier modulated optical frequency modulation with nonuniform laser frequency-modulation response

S. P. Majumder; Mohammad S. Alam; Ranjan Gangopadhyay

doi:10.1117/1.600642

1 March 1996 Performance analysis of subcarrier modulated optical frequency modulation with nonuniform laser frequency-modulation response

S. P. Majumder, Mohammad S. Alam, Ranjan Gangopadhyay

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Optical Engineering, Vol. 35, Issue 3, (March 1996). https://doi.org/10.1117/1.600642

A novel analytical model is provided to evaluate the performance of subcarrier modulated optical heterodyne frequency modulation (FM) using a distributed feedback (DFB) laser with nonuniform FM response taking into account the combined effect of laser phase noise and receiver noise. Two different subcarrier signals, viz. minimum shift keying (MSK) and biphase, are used for direct frequency modulation of the DFB laser diode. The modified Monte-Carlo simulation of the system using the ‘‘importance sampling’’ technique is also carried out. The MSK subcarrier modulated optical FM is found to counteract effectively the degrading effect of nonuniform FM response leaving only a small penalty of 0.2 dB and provides better performance than biphase frequency shift keying.

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S. P. Majumder, Mohammad S. Alam, and Ranjan Gangopadhyay "Performance analysis of subcarrier modulated optical frequency modulation with nonuniform laser frequency-modulation response," Optical Engineering 35(3), (1 March 1996). https://doi.org/10.1117/1.600642

Published: 1 March 1996

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