Title :
1.2 Gbit/s optical DPSK heterodyne detection transmission system using monolithic external-cavity DFB LDs
Author :
Yamazaki, Shumpei ; Murata, Shotaro ; Komatsu, Kazuhiko ; Koizumi, Yuki ; Fujita, S. ; Emura, Keita
Author_Institution :
NEC Corporation, Opto-Electronics Research Laboratories, Kawasaki, Japan
Abstract :
The feasibility of using solitary LDs as light sources for a Gbit/s range optical DPSK heterodyne detection system has been confirmed in 1¿2 Gbit/s transmission experiments. With monolithic external-cavity DFB LDs, a receiver sensitivity of ¿ 43dBm and transmission over 152 km have been achieved. With conventional discrete external-cavity LDs, ¿ 45dBm and 170 km have also been achieved.
Keywords :
distributed feedback lasers; optical communication equipment; phase shift keying; semiconductor junction lasers; 1.2 Gbits/s; 152 km; 170 km; DPSK; heterodyne detection; monolithic external-cavity DFB LDs; optical; receiver sensitivity; transmission system;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870608
