Abstract
The model of passive Q-switching is expanded on the Raman self-active lasers. The numerical optimization demonstrates a possibility of the essential pulse shortening at fundamental as well as at Stokes wavelengths. This is achieved by the control of an initial saturable absorption and a resonator’s Q-factor at both wavelengths. The achievable pulse widths are in an order of magnitude shorter than those in the absence of Raman self-scattering even in the presence of the excited-state absorption in the saturable absorber.
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