Abstract

Nowdays a great attention is attracted to the additive-pulse mode-locking and Kerr lens mode-locking techniques^1,2in order to get ultrashort soliton-like pulses. Here we present another mechanism of pulse formation that is different from nonlinear Schrödinger soliton formation. The intracavity cell with coherent absorber (the bandwidth of the absorber $T_{2p}^{-1}$ much less than the gain one $T_{2A}^{-1}$) is able to initiate the self-induced transparency (SIT)³soliton generation. Theory is developed for dye and diode lasers with cw pumping.

© 1994 IEEE