Energy scaling of nanosecond gain-switched Cr2+:ZnSe lasers

V. V. Fedorov; I. S. Moskalev; M. S. Mirov; S. B. Mirov; T. J. Wagner; M. J. Bohn; P. A. Berry; K. L. Schepler

doi:10.1117/12.876700

15 February 2011 Energy scaling of nanosecond gain-switched Cr²⁺:ZnSe lasers

V. V. Fedorov, I. S. Moskalev, M. S. Mirov, S. B. Mirov, T. J. Wagner, M. J. Bohn, P. A. Berry, K. L. Schepler

Proceedings Volume 7912, Solid State Lasers XX: Technology and Devices; 79121E (2011) https://doi.org/10.1117/12.876700
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

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%.

Citation Download Citation

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); https://doi.org/10.1117/12.876700

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