3.5 W of diffraction-limited green light at 515 nm from SHG of a single-frequency tapered diode laser
Author(s) -
Ole Bjarlin Jensen,
Anders K. Hansen,
André Müller,
Bernd Sumpf,
Paul Michael Petersen,
Peter E. Andersen
Publication year - 2017
Publication title -
proceedings of spie, the international society for optical engineering/proceedings of spie
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.192
H-Index - 176
eISSN - 1996-756X
pISSN - 0277-786X
DOI - 10.1117/12.2249671
Subject(s) - biophotonics , laser , optics , second harmonic generation , materials science , optoelectronics , diffraction , nonlinear optics , diode , dispersion (optics) , laser power scaling , laser diode , cascade , high harmonic generation , green laser , physics , chemistry , chromatography
Multi-Watt efficient compact green laser sources are required for a number of applications e.g. within biophotonics, laser pumping and laser displays. We present generation of 3.5 W of diffraction-limited green light at 515 nm by second harmonic generation (SHG) of a tapered diode laser, itself yielding more than 9 W at 1030 nm. SHG is performed in single pass through a cascade of two nonlinear crystals with re-focusing and dispersion compensating optics between the two nonlinear crystals. The laser is single-frequency and the output power is stabilized to better than ±0.4%.
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