Abstract

We report a high-power (AlGaIn)(AsSb) semiconductor disk laser emitting around 2μm. With a diamond heat spreader used for thermal management, a maximum output power of just over 5W and slope efficiencies of over 25% were demonstrated. The output wavelength was tunable over an 80nm range centered at 1.98μm. The beam propagation parameter (M2) was measured to be in the range of 1.1 to 1.4 for output powers up to 3W.

© 2008 Optical Society of America

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