20 Watt CW TEM00 intracavity doubled optically pumped semiconductor laser at 532 nm
2012
Optically-pumped semiconductor (OPS) lasers are power-scalable, wavelength-flexible, infrared brightness converters.
Adding intra-cavity frequency doubling turns them into efficient, low noise, high power visible laser sources. We report
on a laser combining an InGaAs gain medium with an LBO nonlinear crystal to produce more than 20 Watt CW in
single transverse mode at 532 nm. Efficient cooling of the single gain chip using advanced mounting techniques is the
key to making the laser reliable at high CW powers. A rugged and compact package withstands significant
environmental excursions. The laser's low noise makes it suitable for demanding Ti:Sapphire pumping applications.
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