Anticompetition Between Laser Modes in Quantum-Dot Laser

Author

Su, Yi-Shin ; Chiang, Ding-I ; Lin, Ching-Fuh

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei

Volume

19

Issue

12

fYear

2007

fDate

6/15/2007 12:00:00 AM

Firstpage

889

Lastpage

891

Abstract

Anticompetition behavior is observed in a InAs quantum-dot (QD) laser with external wavelength control. Unlike the competition behavior observed in other QD lasers, in this experiment, the laser emission induced by external feedback at the ground state wavelength improves the excited-state emission at 1170 nm by 13 dB. Such an anticompetition phenomenon is most obvious as the feedback wavelength differs from 1250 nm, the original lasing wavelength, by 15 nm. This anticompetition behavior is explained by the sharing of QDs between the laser emission induced by the feedback and the original laser oscillation

Keywords

excited states; ground states; laser feedback; laser modes; optical control; quantum dot lasers; external feedback; ground state; laser modes anticompetition; quantum-dot laser; Gratings; Laser excitation; Laser feedback; Laser modes; Optical control; Optical feedback; Quantum dot lasers; Quantum well lasers; Semiconductor lasers; State feedback; Carrier dynamics; nonlinear optical device; quantum dots (QDs); semiconductor lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.897560

Filename

4202639