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

Ole Bjarlin Jensen; Jesper Holm; Bernd Sumpf; Götz Erbert; Peter E. Andersen; Paul Michael Petersen

doi:10.1117/12.700276

8 February 2007 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

Ole Bjarlin Jensen, Jesper Holm, Bernd Sumpf, Götz Erbert, Peter E. Andersen, Paul Michael Petersen

Author Affiliations +

Proceedings Volume 6455, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI; 645503 (2007) https://doi.org/10.1117/12.700276
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

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.

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Ole Bjarlin Jensen, Jesper Holm, Bernd Sumpf, Götz Erbert, Peter E. Andersen, and Paul Michael Petersen "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", Proc. SPIE 6455, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI, 645503 (8 February 2007); https://doi.org/10.1117/12.700276

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