High-power ridge waveguide DFB and DFB-MOPA lasers at 1064 nm with a vertical farfield angle of 15°

O. Brox; F. Bugge; A. Ginolas; A. Klehr; P. Ressel; H. Wenzel; G. Erbert; G. Tränkle

doi:10.1117/12.840491

12 February 2010 High-power ridge waveguide DFB and DFB-MOPA lasers at 1064 nm with a vertical farfield angle of 15°

O. Brox, F. Bugge, A. Ginolas, A. Klehr, P. Ressel, H. Wenzel, G. Erbert, G. Tränkle

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.

Citation Download Citation

O. Brox, F. Bugge, A. Ginolas, A. Klehr, P. Ressel, H. Wenzel, G. Erbert, and 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); https://doi.org/10.1117/12.840491

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