29 November 2012 High average power (11 W) eye-safe diamond Raman laser
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Abstract
We report external cavity Raman lasers using a 9.5-mm-long low-loss CVD diamond pumped by a 35 W q-switched Nd:YVO4 laser with approximately 22 ns pulses at 36 kHz pulse repetition frequency. Two systems were investigated. The first demonstrated first and second Stokes simultaneously with more than 14.5 W of combined optical power. For an output coupler optimized for second Stokes only output (1485 nm), 11.1 W at 38% conversion efficiency was obtained. This output power is comparable to the maximum output powers reported for competing pulsed eye-safe technologies such as optical parametric oscillators and Er:YAG lasers.
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Aaron McKay, Aaron McKay, Ondrej Kitzler, Ondrej Kitzler, Hua Liu, Hua Liu, David Fell, David Fell, Richard P. Mildren, Richard P. Mildren, } "High average power (11 W) eye-safe diamond Raman laser", Proc. SPIE 8551, High-Power Lasers and Applications VI, 85510U (29 November 2012); doi: 10.1117/12.999857; https://doi.org/10.1117/12.999857
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