Continuously tunable thin active layer and multisection DFB laser with narrow linewidth and high power

Author

Fukuda, Mitsuo ; Sato, Kenji ; Kondo, Yasuhiro ; Nakao, Masashi

Author_Institution

NTT Optoelectron. Labs., Kanagawa, Japan

Volume

7

Issue

10

fYear

1989

fDate

10/1/1989 12:00:00 AM

Firstpage

1504

Lastpage

1509

Abstract

The feasibility of a wavelength tuning range of 1 nm with the spectral linewidth around 2.5 MHz at about 10 mW is demonstrated in thin-active-layer and multisection 1.5-μm distributed feedback (DFB) lasers with long cavities. The tuning range is widened to over 3 nm by combining electric and thermal tuning effects. A flat FM response with an efficiency of over 1 GHz/mA from low to high (around 1 GHz) frequency is also achieved

Keywords

distributed feedback lasers; frequency modulation; laser cavity resonators; laser tuning; optical modulation; semiconductor junction lasers; 1.5 micron; 10 mW; 2.5 MHz; continuously tunable lasers; distributed feedback lasers; electric tuning effects; flat FM response; high power lasers; long cavity lasers; multisection DFB laser; narrow linewidth; semiconductor lasers; spectral linewidth; thermal tuning effects; thin active layer; wavelength tuning range; Distributed Bragg reflectors; Frequency modulation; Indium phosphide; Laser tuning; Optical buffering; Optical modulation; Optical tuning; Power generation; Power lasers; Tunable circuits and devices;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.39089

Filename

39089