Oscillation center frequency tuning, quantum FM noise, and direct frequency characteristics in external grating loaded semiconductor lasers

Author

Saito, Shigeru ; Nilsson, Olle ; Yamamoto, Yoshihisa

Author_Institution

Nippon Telegraph and Telephone Public Corporation, Tokyo, Japan

Volume

18

Issue

6

fYear

1982

fDate

6/1/1982 12:00:00 AM

Firstpage

961

Lastpage

970

Abstract

Simple analytical expressions for the oscillation frequency, quantum FM noise spectrum, oscillation power spectrum, spectral linewidth, and direct optical frequency modulation efficiency in semiconductor lasers with external grating feedback are presented. Experimental results for the grating loaded AlGaAs lasers are in good agreement with the theoretical predictions. Remarkable reduction in spectral linewidth to less than 50 kHz is achieved by feeding back only 10^-3of the output power. Oscillation frequency stabilization, frequency jump behavior, and reduction in direct optical frequency modulation efficiency are also discussed.

Keywords

FSK modulation/demodulation; Feedback lasers; Gallium materials/lasers; Laser noise; Optical diffraction gratings; Optical fiber transmitters; Frequency modulation; Gratings; Laser feedback; Laser noise; Laser theory; Laser tuning; Optical feedback; Optical noise; Semiconductor device noise; Semiconductor lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.1982.1071636

Filename

1071636