Tunable type II intracavity difference frequency generation at 5.4 ìm in a two chip vertical external cavity surface emitting laser

Michal Lukowski, Chris Hessenius, Robert Bedford, Mahmoud Fallahi

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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, highintensity 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.

Original languageEnglish (US)
Pages (from-to)4174-4177
Number of pages4
JournalOptics Letters
Volume40
Issue number17
DOIs
StatePublished - 2015

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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