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High-power tunable two-wavelength generation in a two chip co-linear T-cavity vertical external-cavity surface-emitting laser

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3 Author(s)
Hessenius, Chris ; College of Optical Sciences, University of Arizona, Tucson 85721, USA ; Lukowski, Michal ; Fallahi, Mahmoud

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We report the design and experimental results of a two chip co-linear T-cavity vertical external cavity surface emitting laser (VECSEL) capable of generating two continuously tunable orthogonally polarized lasing wavelengths. A polarizing beamsplitter is used to overlap two VECSEL cavities thus generating high-power intra-cavity two-wavelength generation ideal for type-II nonlinear frequency conversion. Nearly equal power at each wavelength with a combined dual-wavelength CW output power in excess of 13 W was observed. In a high Q cavity, the wavelength separation was tuned from 35 nm to 52 nm by using birefringent filters in regions where each wavelength lases independently of the other.

Published in:

Applied Physics Letters  (Volume:101 ,  Issue: 12 )