Watt-level second-harmonic generation at 589nm with a PPMgO:LN ridge waveguide crystal pumped by a DBR tapered diode laser

A DBR tapered diode laser in continuous wave operation was used to generate second-harmonic radiation at 589 nm in a PPMgO:LN ridge waveguide crystal. An optical output power of 0.86 W at an optical-to-optical and an electrical-to-optical efficiency of 42% and 11%, respectively, was achieved. The vi...

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Bibliographic Details
Published in:Optics letters 2016-04, Vol.41 (7), p.1530-1533
Main Authors: Bege, R, Jedrzejczyk, D, Blume, G, Hofmann, J, Feise, D, Paschke, K, Trankle, G
Format: Article
Language:English
Subjects:
Beams (radiation)
Computational efficiency
Computing time
Crystals
Diode lasers
Electric power generation
Ridges
Waveguides
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Summary:A DBR tapered diode laser in continuous wave operation was used to generate second-harmonic radiation at 589 nm in a PPMgO:LN ridge waveguide crystal. An optical output power of 0.86 W at an optical-to-optical and an electrical-to-optical efficiency of 42% and 11%, respectively, was achieved. The visible radiation was characterized by a spectral bandwidth Delta [nu] sub(FWHM) of 230 MHz and a beam propagation parameter (ProQuest: Formulae and/or non-USASCII text omitted) better than 1.1. The integration of such a system into a housing of a small footprint will enable a portable and highly efficient module featuring a visible output power in the watt-level range.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.41.001530