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Proceedings Paper

Generation of more than 300 mW diffraction-limited light at 405 nm by second-harmonic generation of a tapered diode laser with external cavity feedback
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Paper Abstract

We have constructed a blue laser source consisting of a single-frequency tapered diode laser with external cavity feedback that is frequency doubled by a quasi-phase matched KTP (PPKTP) in a bowtie ring cavity and extract more than 360 mW of power at 405 nm. The conversion efficiency from fundamental laser power to second harmonic power is 35 %, while it is 64 % from coupled fundamental power to extracted blue light. Thermal effects and gray tracking set an upper limit on the amount of generated blue light.

Paper Details

Date Published: 8 February 2007
PDF: 9 pages
Proc. SPIE 6455, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI, 645503 (8 February 2007); doi: 10.1117/12.700276
Show Author Affiliations
Ole Bjarlin Jensen, Risø National Lab. (Denmark)
Jesper Holm, Risø National Lab. (Denmark)
Bernd Sumpf, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Götz Erbert, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Peter E. Andersen, Risø National Lab. (Denmark)
Paul Michael Petersen, Risø National Lab. (Denmark)


Published in SPIE Proceedings Vol. 6455:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI
Peter E. Powers, Editor(s)

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