NONLINEAR DYNAMICS OF RUBY NMR-LASER WITH EXTERNAL FEEDBACK

A theoretical study is performed for the possible generation:regimes o f a ruby NMR-laser with an external feedback producting the injected s ignal dependent on the lasing field which is generated at the precedin g time instant determined by the signal transit time over the feedback loop. The bifurcations which the system experiences with changing the delay time are analyzed. The conditions for generating stable pulsati ons and their characteristics are determined. The directions for chaot ization and appearance of multistability are pointed out.