High-Power Distributed Feedback Lasers With Surface Gratings

Author

Fricke, Jörg ; Wenzel, Hans ; Bugge, Frank ; Brox, Olaf P. ; Ginolas, Arnim ; John, Wilfred ; Ressel, Peter ; Weixelbaum, Leonhard ; Erbert, Goetz

Author_Institution

Leibniz-Inst. fur Hochstfrequenztechnik, Ferdinand-Braun-Inst., Berlin, Germany

Volume

24

Issue

16

fYear

2012

Firstpage

1443

Lastpage

1445

Abstract

We present the results for high-power broad-area distributed feedback lasers with surface gratings of 80th, 135th, and 270th Bragg orders. A maximum output power of 11 W for a laser with 80th order grating, emitting around 976 nm with a spectral width <; 1 nm has been achieved. Similar narrow linewidth operation occurs for devices with 135th Bragg order from 7- to 11-W output power. The technological approach to fabricating these devices based on stepper lithography and reactive ion etching is described.

Keywords

diffraction gratings; distributed feedback lasers; sputter etching; 135th Bragg orders; 270th Bragg orders; 80th Bragg orders; high-power broad-area distributed feedback lasers; power 7 W to 11 W; reactive ion etching; stepper lithography; surface gratings; wavelength 976 nm; Bragg gratings; Distributed feedback devices; Gratings; Laser feedback; Power lasers; Surface emitting lasers; Bragg grating; high power; laser fabrication; semiconductor laser; wavelength stabilization;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2206378

Filename

6248230