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GaAs-based subharmonic OPO with an instantaneous bandwidth of 3.1–5.8 µm pumped by a femtosecond Tm-fiber laser

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Abstract

We extend broadband degenerate OPO operation further into the mid-infrared using a thulium fiber laser to pump orientation-patterned GaAs. Pump threshold is less than 20mW and output exceeds 30mW over a bandwidth of 3.1-5.8 µm.

© 2012 Optical Society of America

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