Vol. 10, Issue 3, pp. 267-280

Abstract

Basing on the fluctuation model of the laser with mode-locking, an analysis of the influence of the parameters of two-photon absorbent (located in a resonator together with the amplifying medium and the nonlinear single-photon absorbent) on the generated pulse characteristics has been carried out. It has been shown that — due to the application of the two-photon saturating absorbent the intensity and contrast may be considerably increased and the picosecond pulse duration reduced. Some approximate analytic criteria of the effective picosecond-pulse generation in laser with single- and two-photon absorbent are defined.