Advantage of 1.55 mu m InGaAs/InGaAsP MQW-DFB lasers for reducing waveform degradation and dispersion penalty for 2.5 Gb/s long-span normal fiber transmission

Author

Uomi, Kazuhisa ; Murata, Atsushi ; Sano, Shigehisa ; Takeyari, Ryoji ; Takai, Atsushi

Author_Institution

Hitachi Ltd., Tokyo, Japan

Volume

4

Issue

6

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

657

Lastpage

660

Abstract

The advantage of 1.55- mu m multiquantum-well (MQW) distributed-feedback (DFB) lasers over conventional bulk lasers for normal fiber transmission is shown by evaluating the waveform degradation and the dispersion penalty theoretically and experimentally. The dispersion penalty expected for 70-km transmission is shown to be smaller than 1 dB at 2.5 Gb/s when the bias current is 1.1 times the threshold bias.<>

Keywords

III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; optical communication equipment; optical dispersion; optical links; semiconductor junction lasers; 1.55 micron; 2.5 Gbit/s; 70 km; IR; InGaAs-InGaAsP; MQW-DFB lasers; bias current; dispersion penalty; distributed-feedback; long-span normal fiber transmission; multiquantum-well; semiconductor diode lasers; threshold bias; waveform degradation; Degradation; Electrons; Fiber lasers; Indium gallium arsenide; Optical control; Optical fiber communication; Optical fiber dispersion; Optical fiber polarization; Optical fibers; Quantum well devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.142002

Filename

142002