THE GENERAL-APPROACH TO MODE-LOCKING MECHANISM ANALYSIS FOR CW SOLID-STATE LASERS WITH A NONLINEAR FABRY-PEROT-INTERFEROMETER

The effective mode locking of a CW solid-state laser with a nonlinear Fabry-Perot interferometer with a period matched to that of the main c avity period (mode locking by additional cavity, or coupled-cavity mod e locking) is considered. The main features of the ultra-short pulse g eneration obtained on the basis of numerical simulations in the framew ork of the fluctuation model are interpreted using an analysis of nonl inear reflectivity of the interferometer. A correlation between parame ter ranges for effective mode locking and self-consistent solutions of the system describing the CW ultra-short pulse generation allows one to explain a 'discrete' range character. A new mode-locking regime has been described and the influence of interferometer bistability on the mode-locking efficiency has been evaluated.