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22 February 2013 Megawatt peak power UV microlaser
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We report the development of a very compact, highly efficient, megawatt peak power 266 nm UV microlaser. It contains a specially designed passively Q-switched Nd:YAG/Cr4+:YAG microchip laser whose high output peak power of 13 MW enables us to perform wavelength conversion without using any optics before the nonlinear crystals. We achieve 73 % SHG conversion efficiency using a LBO crystal and 45% FHG conversion efficiency using a BBO crystal. As a result, we obtain 650 μJ, 4.3 MW peak power, 150 ps, 100 Hz pulse output at 266 nm. This palm-top size 266 nm UV microlaser will be useful for many applications.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rakesh Bhandari and Takunori Taira "Megawatt peak power UV microlaser", Proc. SPIE 8604, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII, 860405 (22 February 2013);

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