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Proceedings Paper

Continuous wave single longitudinal mode SHG with two stages of intra-cavity power enhancement at fundamental frequency
Author(s): Fedor Karpushko
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Paper Abstract

In common intra-cavity SHG schemes, the requirement for high(st) level of fundamental frequency power inside the non-linear crystal contradicts with the condition for extracting the maximum power available from the laser active medium. This impedance mismatch problem is removed by using the fundamental frequency power enhancement in two steps, the first one being optimized for maximum power outcoupling while at the second step the circulating inside nonlinear crystal power is further increased for maximum efficiency of SHG process. Experimentally proved this approach allows 3-5 times higher SH output power from DPSS lasers at given pump as compared with traditional schemes.

Paper Details

Date Published: 20 February 2008
PDF: 7 pages
Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 68711M (20 February 2008); doi: 10.1117/12.763235
Show Author Affiliations
Fedor Karpushko, KLASTECH, Karpushko Laser Technologies GmbH (Germany)


Published in SPIE Proceedings Vol. 6871:
Solid State Lasers XVII: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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