Abstract
A doubly shifted Raman laser using gas has been developed for generation, pumped by a Nd∶YAG laser with at . A dichroically coated meniscus-type lens is modified to utilize the backward stimulated Brillouin scattering and backward Stokes beams from a previous laser design [Appl. Opt. 46, 5516–5521 (2007)]. A maximum output energy of at wavelength has been achieved in the cascaded resonator. A maximum conversion efficiency of 8.9% has been achieved at a gas pressure of . The obtained spatial beam profile is quite smooth, and its output pulse width is .
© 2008 Optical Society of America
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