Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2206378
