Long-haul coherent optical fiber communication systems using optical amplifiers

Author

Ryu, Shiro ; Yamamoto, Shu ; Taga, Hidenori ; Edagawa, Noboru ; Yoshida, Yoshihisa ; Wakabayashi, Hiroharu

Author_Institution

KDD Res. & Dev. Labs., Saitama, Japan

Volume

9

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

251

Lastpage

260

Abstract

Studies on long-haul coherent optical fiber communication systems with in-line optical amplifier repeaters are made theoretically and experimentally. By theoretical calculation it was found that coherent systems can achieve wider dynamic range for an amplifier input power as compared with the intensity-modulation direct-detection (IM-DD) systems. The feasibility of such systems using traveling-wave semiconductor laser amplifiers (TWSLAs) and erbium-doped fiber amplifiers (EDFAs) was investigated, and 546 km, 140 Mb/s CPFSK transmission using TWSLAs and 1028-km, 560-Mb/s CPFSK transmission using EDFAs were successfully demonstrated

Keywords

fibre lasers; light coherence; optical communication equipment; optical links; semiconductor junction lasers; 1028 km; 140 Mbit/s; 56 km; 560 Mbit/s; CPFSK transmission; Er:fibre amplifiers; amplifier input power; dynamic range; in-line optical amplifier repeaters; long-haul coherent optical fiber communication systems; optical amplifiers; traveling-wave semiconductor laser amplifiers; Dynamic range; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Power amplifiers; Repeaters; Semiconductor optical amplifiers; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.65883

Filename

65883