Mode discrimination in distributed feedback grating surface emitting lasers containing a buried second-order grating

Author

Carlson, Nils W. ; Liew, So Kuen ; Amantea, Robert ; Bour, David P. ; Evans, Gary A. ; Vangieson, Edward A.

Author_Institution

David Sarnoff Res. Center, Princeton, NJ, USA

Volume

27

Issue

6

fYear

1991

fDate

6/1/1991 12:00:00 AM

Firstpage

1746

Lastpage

1752

Abstract

The operating characteristics of a novel grating surface emitting laser structure containing a buried second-order grating have been studied both experimentally and theoretically. This device consists of a pumped distributed feedback (DFB) section that is terminated at each end by unpumped distributed Bragg reflector (DBR) sections. A single continuous second-order grating layer and waveguide layer extend throughout the active and passive sections so that there is essentially no fabricated optical discontinuity at the interface between the active and passive end sections. Single mode operation (>30 dB side mode suppression) and single-lobed far fields with negligible sidelobes are observed up to more than 5×I_th with spectral linewidths as narrow as 1 MHz

Keywords

diffraction gratings; distributed Bragg reflector lasers; distributed feedback lasers; integrated optics; laser modes; semiconductor junction lasers; active sections; buried second-order grating; distributed feedback grating surface emitting lasers; interface; mode discrimination; operating characteristics; passive sections; pumped distributed feedback section; single continuous second-order grating layer; single mode operation; single-lobed far fields; spectral linewidths; unpumped distributed Bragg reflector sections; waveguide layer; Distributed Bragg reflectors; Distributed feedback devices; Gratings; Laser feedback; Laser modes; Laser theory; Optical surface waves; Optical waveguides; Pump lasers; Surface emitting lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.90000

Filename

90000