24 February 2017 Efficient Q-switched operation in 1.64 μm Er:YAG tapered rod laser
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Abstract
We model output characteristics of the 1645 nm 8 mJ 10 ns 100 Hz Q-switched Er:YAG DPSSL. The laser is end pumped at a wavelength of 1532 nm. Fiber-coupled diode laser module was 10 nm FWHM, 12 W CW, 200 μm, NA 0.22. Various tapering of the active rod has been considered for 1 mm diameter, 20 mm long and 0.5% Er doping. We discuss the heat deposition process, the energy storage efficiency and the average power limitations for Q-switched regime of generation and amplification, and find the system scalable for the high power operation.
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Vadim M. Polyakov, Vadim M. Polyakov, Vladimir V. Vitkin, Vladimir V. Vitkin, Alexandr A. Krylov, Alexandr A. Krylov, Alexander V. Uskov, Alexander V. Uskov, Andrey A. Mak, Andrey A. Mak, } "Efficient Q-switched operation in 1.64 μm Er:YAG tapered rod laser", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100821V (24 February 2017); doi: 10.1117/12.2250847; https://doi.org/10.1117/12.2250847
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