Tunable multiple-quantum-well distributed-Bragg-reflector lasers as tunable narrowband receivers

Author

Koch, T.L. ; Choa, F.S. ; Heismann, F. ; Koren, U.

Author_Institution

AT&T Bell Labs., Holmdel, NJ, USA

Volume

25

Issue

14

fYear

1989

fDate

7/6/1989 12:00:00 AM

Firstpage

890

Lastpage

892

Abstract

Reports a tunable receiver based on a MQW-DBR laser biased just below threshold. The device simultaneously integrates the functions of a tunable filter, optical amplifier, photodetector and, if desired, an FSK discrimination. Using identical devices for both a transmitter and a receiver, we demonstrate FSK transmission up to 250 Mbit/s with sensitivities in the approximately -30 dBm range for 10^-9 BER. Speed is limited by the transmitter FM response, and independent speed measurements indicate a detection bandwidth of at least 1.7 GHz.

Keywords

distributed Bragg reflector lasers; frequency division multiplexing; frequency shift keying; optical communication equipment; optical filters; photodetectors; receivers; semiconductor junction lasers; tuning; 1.7 GHz; 250 Mbit/s; BER; FSK discrimination; FSK transmission; MQW-DBR laser; biased just below threshold; detection bandwidth; distributed-Bragg-reflector lasers; identical receiver transmitter devices; multiple-quantum-well; optical amplifier; photodetector; sensitivities; transmitter FM response; tunable filter; tunable narrowband receivers; tunable receiver;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19890597

Filename

31920