Progress in ultra-compact green frequency doubled optically pumped surface emitting lasers

Ulrich Steegmueller; Michael Kuehnelt; Heiko Unold; Thomas Schwarz; Michael Schmitt; Karsten Auen; Roland Schulz; Christoph Walter; Ines Pietzonka; Stefan Illek; Hans Lindberg; Alvaro Gomez-Iglesias; Michael Furitsch; Christian Lauer; Uwe Strauss; Thomas Hoefer

doi:10.1117/12.809319

23 February 2009 Progress in ultra-compact green frequency doubled optically pumped surface emitting lasers

Ulrich Steegmueller, Michael Kuehnelt, Heiko Unold, Thomas Schwarz, Michael Schmitt, Karsten Auen, Roland Schulz, Christoph Walter, Ines Pietzonka, Stefan Illek, Hans Lindberg, Alvaro Gomez-Iglesias, Michael Furitsch, Christian Lauer, Uwe Strauss, Thomas Hoefer

Author Affiliations +

Proceedings Volume 7198, High-Power Diode Laser Technology and Applications VII; 719807 (2009) https://doi.org/10.1117/12.809319
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

Compact, stable and efficient green lasers are of great interest for many applications like mobile video projection, sensing, distance measurement and instrumentation. Those applications require medium values of output power in the 50mW range, good wall-plug efficiency above 5 % and stable operation over a wide temperature range. In this paper we present latest results from experimental investigations on ultra-compact green intracavity frequency doubled optically pumped semiconductor InGaAs disk lasers. The green laser setup has been limited to a few micro optical and semiconductor components built on a silicon backplane and fits within an envelope of less than 0.4 cc. An optical frequency looking scheme in order to fix the fundamental wavelength over varying operating conditions like changing output power and ambient temperature has been applied. The cavity has been optimized for fast modulation response and high efficiency using quasi-phase matching non-linear material. Recent data from cw and high-frequency characterization is presented.

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Ulrich Steegmueller, Michael Kuehnelt, Heiko Unold, Thomas Schwarz, Michael Schmitt, Karsten Auen, Roland Schulz, Christoph Walter, Ines Pietzonka, Stefan Illek, Hans Lindberg, Alvaro Gomez-Iglesias, Michael Furitsch, Christian Lauer, Uwe Strauss, and Thomas Hoefer "Progress in ultra-compact green frequency doubled optically pumped surface emitting lasers", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 719807 (23 February 2009); https://doi.org/10.1117/12.809319

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