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Proceedings Paper

Low-cost frequency-converted laser light sources
Author(s): J. Konttinen; P. Tuomisto; T. Vallius; P. Pietilä; T. Jouhti
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Paper Abstract

We report a fast-switching two-component frequency-converted laser with reduced speckle visibility. A bottom-emitting passively Q-switched laser with integrated electroabsorber, folding mirror and coupling lens was successfully applied with a waveguide-type periodically poled magnesium oxide doped lithium niobate crystal to generate second harmonic light at 532 nm. Reduced speckle visibility was demonstrated when operating the laser in self-pulsating mode when compared to continuous-wave operation even when using a nonlinear crystal with narrow acceptance bandwidth of 0.24 nm @ 1064 nm. The spectral width of the infrared light was 0.33 nm in pulsed mode and 0.08 nm in continuous-wave mode resulting in visible light spectral width of 0.12 nm and 0.03 nm in self-pulsating and continuous-wave mode.

Paper Details

Date Published: 17 February 2010
PDF: 8 pages
Proc. SPIE 7578, Solid State Lasers XIX: Technology and Devices, 75780S (17 February 2010); doi: 10.1117/12.842545
Show Author Affiliations
J. Konttinen, EpiCrystals, Inc. (Finland)
P. Tuomisto, EpiCrystals, Inc. (Finland)
T. Vallius, EpiCrystals, Inc. (Finland)
P. Pietilä, EpiCrystals, Inc. (Finland)
T. Jouhti, EpiCrystals, Inc. (Finland)


Published in SPIE Proceedings Vol. 7578:
Solid State Lasers XIX: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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