Title :
Long-span optical FSK heterodyne single-filter detection transmission experiment using a phase-tunable DFB laser diode
Author :
Yamazaki, Shumpei ; Emura, Keita ; Shikada, Masaaki ; Yamaguchi, Masaki ; Mito, I. ; Minemura, Kazuki
Author_Institution :
NEC Corporation, Opto-Electronics Research Laboratories, Kawasaki, Japan
Abstract :
High receiver sensitivity (¿51.9 dBm) and long span (243 km) transmission expriments have been achieved with a 140 Mbit/s optical FSK heterodyne single-filter detection system, using a phase-tunable DFB laser diode as a transmitter. This has enabled direct FSK modulation without waveform distortion. Also, a 280 Mbit/s 204 km transmission experiment has been carried out successfully.
Keywords :
distributed feedback lasers; frequency shift keying; optical communication; optical modulation; photodetectors; semiconductor junction lasers; 140 Mbit/s; 280 Mbit/s; FSK modulation; long span; optical FSK heterodyne single-filter detection transmission; phase-tunable DFB laser diode; receiver sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860004
