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Semiconductor laser FSK modulation and optical direct discrimination detection

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3 Author(s)
Saito, S. ; NTT, Musashino Electrical Communication Laboratory, Musashino, Japan ; Yamamoto, Y. ; Kimura, T.

FSK signals are generated in an AlGaAs double heterostructure laser by employing an electrical equalising circuit to compensate for its nonuniform FM modulation characteristics. A 10¿9 bit error rate is achieved at a 100 Mbit/s data rate in the optical direct discrimination detection with a Michelson interferometer. The optical FSK discrimination detection performance is studied in terms of receiving signal power level and laser spectral linewidth.

Published in:

Electronics Letters  (Volume:18 ,  Issue: 11 )