Share Email Print
cover

Proceedings Paper

High-efficient 650 nm laser bars with an output power of about 10 W and a wall-plug efficiency of 30%
Author(s): Bernd Sumpf; Martin Zorn; Ralf Staske; Jörg Fricke; Peter Ressel; Götz Erbert; Markus Weyers; Günther Tränkle
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, results for 650 nm high-power broad area lasers and bars will be presented. The optimized layer structure consists of GaInP quantum wells embedded in AlGaInP waveguide layers. The n-cladding layer consists of AlInP, the p-cladding layer of AlGaAs. The vertical far field of this structure has a width below 32° (FWHM). Devices were fabricated and mounted p-side down on CuW heat spreader using AuSn solder. Broad area lasers reach a maximum output power of 0.94 W at 15°C limited only by thermal rollover. Up to now reliable operation at 500 mW over 6300 h was achieved. The spectral width of the emission is below 1 nm (FWHM). Bars consisting of 19 emitters with 30 μm x 750 μm reached a maximum output power of 9.6 W and a wall-plug efficiency of 30%. Reliable operation from a 5 mm bar at 5 W and 15°C over 1500 h was shown.

Paper Details

Date Published: 22 February 2006
PDF: 8 pages
Proc. SPIE 6133, Novel In-Plane Semiconductor Lasers V, 61330D (22 February 2006); doi: 10.1117/12.644555
Show Author Affiliations
Bernd Sumpf, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Martin Zorn, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Ralf Staske, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Jörg Fricke, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Peter Ressel, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Götz Erbert, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Markus Weyers, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Günther Tränkle, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 6133:
Novel In-Plane Semiconductor Lasers V
Carmen Mermelstein; David P. Bour, Editor(s)

© SPIE. Terms of Use
Back to Top