Title :
Semiconductor laser FSK modulation and optical direct discrimination detection
Author :
Saito, Sakuyoshi ; Yamamoto, Yusaku ; Kimura, Tomohiro
Author_Institution :
NTT, Musashino Electrical Communication Laboratory, Musashino, Japan
Abstract :
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.
Keywords :
frequency shift keying; optical communication equipment; optical modulation; semiconductor junction lasers; signal detection; 100 Mbit/s data rate; AlGaAs double-heterostructure laser; FSK modulation; Michelson interferometer; bit error rate; electrical equalising circuit; optical FSK; optical communication; optical direct discrimination detection; semiconductor laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820319
