12 February 2010 High-power ridge waveguide DFB and DFB-MOPA lasers at 1064 nm with a vertical farfield angle of 15°
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Proceedings Volume 7616, Novel In-Plane Semiconductor Lasers IX; 761610 (2010) https://doi.org/10.1117/12.840491
Event: SPIE OPTO, 2010, San Francisco, California, United States
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.
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O. Brox, F. Bugge, A. Ginolas, A. Klehr, P. Ressel, H. Wenzel, G. Erbert, G. Tränkle, "High-power ridge waveguide DFB and DFB-MOPA lasers at 1064 nm with a vertical farfield angle of 15°", Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 761610 (12 February 2010); doi: 10.1117/12.840491; https://doi.org/10.1117/12.840491
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