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Highly efficient continuous wave blue second-harmonic generation in fs-laser written periodically poled Rb:KTiOPO4 waveguides
Universität Hamburg. (Institut für Laser-Physik)
Universität Hamburg. (Institut für Laser-Physik)
Universität Hamburg. (Institut für Laser-Physik)
Universität Hamburg. (The Hamburg Centre for Ultrafast Imaging, Institut für Laser-Physik)
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2014 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 39, no 5, 1274-1277 p.Article in journal (Refereed) Published
Abstract [en]

Waveguides were inscribed into a 9.5 mm long periodically poled KTiOPO4 crystal with a Ti:sapphire femtosecond-laser. Waveguiding was achieved between two parallel written tracks with spacings of 17–19 μm. The fundamental power of 1.6 W for frequency doubling in the waveguide was delivered by a continuous wave Ti:sapphire laser at a wavelength of 943.18 nm. A maximum output power of 76 mW in the blue spectral region was achieved. This corresponds to a single pass normalized conversion efficiency of 4.6%  W−1 cm−2.

Place, publisher, year, edition, pages
2014. Vol. 39, no 5, 1274-1277 p.
Keyword [en]
Femtosecond-Laser, Induced Breakdown, Slope Efficiency, Diode-Laser, Ktp, Light, Ktiopo4, Power, Crystal
National Category
Engineering and Technology
Research subject
URN: urn:nbn:se:kth:diva-143203DOI: 10.1364/OL.39.001274ISI: 000332233300044ScopusID: 2-s2.0-84897400572OAI: diva2:705930
Swedish Research Council

QC 20140331

Available from: 2014-03-18 Created: 2014-03-18 Last updated: 2015-03-30Bibliographically approved

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Canalias, CarlotaLiljestrand, CharlotteLaurell, Fredrik
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