Abstract

We report on the generation and experimental demonstration of intracavity type II difference frequency generation in a two chip InGaAs/GaAs vertical external cavity surface emitting laser. The presented two chip cavity provides two orthogonally polarized, independently tunable, high-intensity lasing modes with emissions around 970 and 1170 nm. A silver thiogallate nonlinear crystal is inserted in the common collinear folded region of the cavity to generate output in the mid-IR spectral band. The independent tunability of each fundamental color allows for more than 100 nm of tuning around a 5.4 μm difference frequency generated signal with a CW output power in excess of 5 mW.

© 2015 Optical Society of America

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