A system of equations is acquired for the parameters of ultrashort light pulses (USP) in a solid-state ring laser with active mode locking which considers the interaction of counter propagating USP due to inverse reflections in a modulator. The mode of capture of the frequencies of the counter propagating waves is investigated. It is shown that with specific phases of scattering coefficients on the faces of the modulator and with specific modulator lengths, it is possible to eliminate suppression of the counter propagating waves which form with an increase in the misalignment of the modulation frequency relative to its optimal value.
Research Institute of Nuclear Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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