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Proceedings Paper

High-power ridge waveguide DFB and DFB-MOPA lasers at 1064 nm with a vertical farfield angle of 15°
Author(s): O. Brox; F. Bugge; A. Ginolas; A. Klehr; P. Ressel; H. Wenzel; G. Erbert; G. Tränkle
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Paper Abstract

We present high-power ridge waveguide (RW) distributed feedback (DFB) lasers and DFB master optical power amplifiers (DFB-MOPAs) with high-quality beams optimized for pulsed operation and current modulation. A Bragg grating ensures stable longitudinal single-mode emission around 1064 nm. Furthermore, vertical and lateral structures of the devices were optimized for stable fundamental-mode operation. The slope efficiency of 1 mm DFB lasers slightly above threshold is as high as 0.95 W/A and the continuous wave (cw) optical output power is almost 400 mW at a current of 500 mA. For the DFB-MOPAs a cw output power of 1 W has been obtained. Due to low ellipticity, low divergence and low beam steering of the output beams the devices are well suited for efficient coupling to single mode waveguides.

Paper Details

Date Published: 12 February 2010
PDF: 9 pages
Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 761610 (12 February 2010); doi: 10.1117/12.840491
Show Author Affiliations
O. Brox, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
F. Bugge, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
A. Ginolas, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
A. Klehr, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
P. Ressel, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
H. Wenzel, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
G. Erbert, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
G. Tränkle, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 7616:
Novel In-Plane Semiconductor Lasers IX
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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