3.5 W of diffraction-limited green light at 515 nm from SHG of a single-frequency tapered diode laser
O.B. Jensena, A.K. Hansena, A. Müllerb, B. Sumpfb, P.M. Petersena, and P.E. Andersena
Published in:
Proc. SPIE 10088, Photonics West, San Francisco, USA, Jan 28 - Feb 02, 1008803 (2017).
Abstract:
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%.
a DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, DK-4000 Roskilde, Denmark
b Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
Keywords:
tapered diode laser, second harmonic generation, visible lasers, 515 nm.
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