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Proceedings Paper

Progress in ultra-compact green frequency doubled optically pumped surface emitting lasers
Author(s): 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
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Paper 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.

Paper Details

Date Published: 23 February 2009
PDF: 8 pages
Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 719807 (23 February 2009); doi: 10.1117/12.809319
Show Author Affiliations
Ulrich Steegmueller, OSRAM Opto Semiconductors Inc. (United States)
Michael Kuehnelt, OSRAM Opto Semiconductors GmbH (Germany)
Heiko Unold, OSRAM Opto Semiconductors GmbH (Germany)
Thomas Schwarz, OSRAM Opto Semiconductors GmbH (Germany)
Michael Schmitt, OSRAM Opto Semiconductors GmbH (Germany)
Karsten Auen, OSRAM Opto Semiconductors GmbH (Germany)
Roland Schulz, OSRAM Opto Semiconductors GmbH (Germany)
Christoph Walter, OSRAM Opto Semiconductors GmbH (Germany)
Ines Pietzonka, OSRAM Opto Semiconductors GmbH (Germany)
Stefan Illek, OSRAM Opto Semiconductors GmbH (Germany)
Hans Lindberg, OSRAM Opto Semiconductors GmbH (Germany)
Alvaro Gomez-Iglesias, OSRAM Opto Semiconductors GmbH (Germany)
Michael Furitsch, OSRAM Opto Semiconductors GmbH (Germany)
Christian Lauer, OSRAM Opto Semiconductors GmbH (Germany)
Uwe Strauss, OSRAM Opto Semiconductors GmbH (Germany)
Thomas Hoefer, OSRAM Opto Semiconductors GmbH (Germany)


Published in SPIE Proceedings Vol. 7198:
High-Power Diode Laser Technology and Applications VII
Mark S. Zediker, Editor(s)

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