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Room-temperature operation of λ≈2.95μm In0.67Ga0.33As/Al0.57In0.43As quantum cascade laser source based on intra-cavity second harmonic generation

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Abstract

We report λ≈2.95μm strain-compensated quantum cascade laser source based on intra-cavity second harmonic generation. The laser operates in pulsed mode at 298K with Jth =2.7kA/cm2 and provides 30μW of second-harmonic radiation with 0.1mW/W2 conversion efficiency.

© 2011 Optical Society of America

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