Abstract

We demonstrate an optically pumped semiconductor disk laser using 39 layers of Stranski–Krastanov InGaAs quantum dots self-assembled during epitaxial growth on a monolithic GaAs∕AlAs distributed Bragg reflector. The gain structure bonded to an intracavity diamond crystal heat spreader allows 1.75 W single-transverse-mode output (M2<1.2) with circular beam shape operating at 1180 nm in a disk laser geometry.

© 2010 Optical Society of America

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