99 W mid-IR operation of a ZGP OPO at 25% duty cycle.

Opt Express

Institute for Lasers, Life and Biophotonics Amsterdam, Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.

Published: April 2013

We have demonstrated the highest reported output power from a mid-IR ZGP OPO. The laser is a cascaded hybrid system consisting of a thulium fibre laser, Ho:YAG solid state laser and a Zinc Germanium Phosphide parametric oscillator. The system produces 27 W of output power in the 3-5 μm wavelength range with an M(2) = 4.0 when operating in a repetitively q-switched mode, and a modulated peak output power of 99 W at a reduced duty cycle of 25%.

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http://dx.doi.org/10.1364/OE.21.010062DOI Listing

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