Title :
2 Gbit/s optical CPFSK heterodyne detection transmission experiment using newly developed MQW-DFB laser diodes
Author :
Yamazaki, Shumpei ; Shibutani, M. ; Takano, Shigeru ; Kitamura, Masayuki ; Mito, I. ; Shikada, Masaaki
Author_Institution :
NEC Corp., Kanagawa, Japan
Abstract :
The feasibility of newly developed multiple-quantum-well (MQW) DFB LDs as light sources for a high-sensitivity optical CPFSK heterodyne detection system has been confirmed in 2 Gbit/s transmission experiments. An 8 MHz narrow beat linewidth and optimum modulation index resulted in -41.6 dBm high receiver sensitivity and 204 km transmission. This sensitivity was only 0.1 dB down from the 2 Gbit/s DPSK experiment result.
Keywords :
distributed feedback lasers; frequency shift keying; optical communication equipment; semiconductor junction lasers; 2 Gbit/s; 204 km; 8 MHz; 8 MHz narrow beat linewidth; MQW-DFB laser diodes; experiment result; feasibility; heterodyne detection system; light sources; multiple-quantum-well; optical CPFSK heterodyne detection transmission experiment; optimum modulation index; receiver sensitivity; transmission experiments;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890115
