Spectral behavior of 1.5 µm BIG-DBR-DSM lasers

Author

Posadas, Linda S. ; Komori, Kazuhiro ; Tohmori, Yuichi ; Arai, Shigehisa ; Suematsu, Yasuharu

Author_Institution

University of the Phillipines, Quezon City, Phillipines

Volume

23

Issue

6

fYear

1987

fDate

6/1/1987 12:00:00 AM

Firstpage

796

Lastpage

803

Abstract

Direct modulation properties of BIG-DBR-DSM lasers were investigated by measuring both the time-averaged and the time-resolved spectra. A high side-mode-suppression ratio of more than 30 dB was obtained from time-averaged measurements with the modulation frequency in the range of 250 MHz-2 GHz. The dynamic wavelength shift at - 3 dB level obtained from both time-averaged and time-resolved measurements was less than 2 Å. Time-resolved measurements showing an oscillatory behavior of the dynamic wavelength shift with both red and blue shifts were also observed. Calculations based on a numerical solution of the rate equations, which agreed quantitatively with the measurement, indicate a line width enhancement factor estimated to lie between 3.5 and 5.5.

Keywords

Distributed Bragg reflector lasers; Gallium materials/lasers; Optical modulation/demodulation; Chemical technology; Distributed Bragg reflectors; Frequency measurement; Laser theory; Length measurement; Light sources; Optical fiber communication; Optical losses; Semiconductor lasers; Wavelength measurement;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.1987.1073401

Filename

1073401