Influence of external optical feedback on threshold and spectral characteristics of vertical-cavity surface-emitting lasers

Author

Jiang, Shijun ; Pan, Zeqi ; Dagenais, Mario ; Morgan, Robert A. ; Kojima, Keisuke

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

6

Issue

1

fYear

1994

Firstpage

34

Lastpage

36

Abstract

We report a study of the effects of external optical feedback on the threshold and spectral characteristics of VCSELs with feedback levels in the range from /spl minus/25 dB to 0 dB. A large threshold current reduction and multi-extended-cavity-mode operation have been observed. The experimental results are in good agreement with the theoretical calculations based on a compound cavity laser model.<>

Keywords

laser cavity resonators; laser theory; semiconductor lasers; 835 nm; GaAs-AlGaAs; compound cavity laser model; external optical feedback; feedback levels; multi-extended-cavity-mode operation; spectral characteristics; threshold; threshold current reduction; vertical-cavity surface-emitting lasers; Laser feedback; Laser modes; Laser theory; Optical attenuators; Optical feedback; Optical surface waves; Semiconductor laser arrays; Surface emitting lasers; Threshold current; Vertical cavity surface emitting lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.265881

Filename

265881