Analysis of a dual grating-type surface emitting laser

Author

Hardy, Amos ; Welch, David F. ; Streifer, William

Author_Institution

Spectra Diode Lab., San Jose, CA, USA

Volume

26

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

50

Lastpage

60

Abstract

The grating-coupled surface emitter (GSE) consists of a gain section between two grating sections, which are not necessarily identical. The gratings act as both distributed Bragg reflectors and output couplers. An analysis that applies to arbitrary grating shapes and has provisions to include the presence of a substrate reflector to reduce the radiated power into that medium is carried out. Thresholds, differential efficiencies, and far-field patterns are compared for the low-threshold longitudinal modes of the system. Examples illustrating variations in tooth shapes and heights, waveguide loss, the presence of a substrate reflector, and detuning from the Bragg condition are included

Keywords

diffraction gratings; distributed Bragg reflector lasers; laser theory; optical couplers; optical losses; optical waveguides; reflectivity; substrates; Bragg condition detuning; arbitrary grating shapes; differential efficiencies; distributed Bragg reflectors; dual grating-type surface emitting laser; far-field patterns; gain section; grating sections; grating-coupled surface emitter; laser thresholds; low-threshold longitudinal modes; output couplers; radiated power; substrate reflector; tooth heights; tooth shapes; waveguide loss; Arrayed waveguide gratings; Bragg gratings; Distributed Bragg reflectors; Laser feedback; Optical coupling; Optical waveguides; Shape; Surface emitting lasers; Teeth; Waveguide lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.44916

Filename

44916