Abstract

A narrow-linewidth mid-IR source based on difference-frequency generation of an amplified 1.5 μm diode laser and a cw Tm-doped fiber laser in orientation-patterned (OP) GaAs has been developed and evaluated for spectroscopic applications. The source can be tuned to any frequency in the 7.6–8.2 μm range with an output power of 0.5 mW. The measured characteristics of the OP-GaAs sample demonstrate a high quality of the material.

© 2008 Optical Society of America

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