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Proceedings Paper

Fast-switching frequency-converted laser light source for display applications
Author(s): J. Konttinen; P. Tuomisto; T. Vallius; T. Jouhti
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Paper Abstract

We report a passively Q-switched two-component visible laser light source based on frequency conversion. The device consists of a monolithic single transverse mode ridge-waveguide infrared laser diode and a waveguide-type periodically poled magnesium oxide doped lithium niobate crystal for second harmonic light generation. An integrated 45-degree folding mirror and a coupling lens are formed by etching on opposite sides of the monolithic gallium arsenide -based laser diode for coupling the infrared emission into the waveguide-type nonlinear crystal for efficient single pass frequency conversion. Passively Q-switched operation is realized by an integrated electro-absorber section coupled with the in-plane multi-quantum well gain structure. Stable high-repetition rate self-pulsating operation was achieved by reverse-biasing the electro-absorber section and reduced speckle visibility of the second harmonic light was observed when compared to continuous-wave operation of the same laser.

Paper Details

Date Published: 5 May 2010
PDF: 8 pages
Proc. SPIE 7723, Optics, Photonics, and Digital Technologies for Multimedia Applications, 77230T (5 May 2010); doi: 10.1117/12.851384
Show Author Affiliations
J. Konttinen, EpiCrystals, Inc. (Finland)
P. Tuomisto, EpiCrystals, Inc. (Finland)
T. Vallius, EpiCrystals, Inc. (Finland)
T. Jouhti, EpiCrystals, Inc. (Finland)

Published in SPIE Proceedings Vol. 7723:
Optics, Photonics, and Digital Technologies for Multimedia Applications
Peter Schelkens; Touradj Ebrahimi; Gabriel Cristóbal; Frédéric Truchetet; Pasi Saarikko, Editor(s)

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