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15 February 2011 Energy scaling of nanosecond gain-switched Cr2+:ZnSe lasers
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In this paper, we report record nanosecond output energies of gain-switched Cr:ZnSe lasers pumped by Q-switched Cr:Tm:Ho:YAG (100 ns @ 2.096 μm) and Raman shifted Nd:YAG lasers (7 ns @ 1.906 μm). In these experiments we used Brewster cut Cr:ZnSe gain elements with a chromium concentration of 8x1018 cm-3. Under Cr:Tm:Ho:YAG pumping, the first Cr:ZnSe laser demonstrated 3.1 mJ of output energy, 52% slope efficiency and 110 nm linewidth centered at a wavelength of 2.47 μm. Maximum output energy of the second Cr:ZnSe laser reached 10.1 mJ under H2 Raman shifted Nd:YAG laser pumping. The slope efficiency estimated from the input-output data was 47%.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. V. Fedorov, I. S. Moskalev, M. S. Mirov, S. B. Mirov, T. J. Wagner, M. J. Bohn, P. A. Berry, and K. L. Schepler "Energy scaling of nanosecond gain-switched Cr2+:ZnSe lasers", Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79121E (15 February 2011);


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