DYNAMIC AND STOCHASTIC DISTRIBUTED-FEEDBA CK IN LASERS

Theoretical models and calculation methods for the parameters of visib le DFB lasers were considered. The effective Q-factor approach, being asymptotically accurate, allowed us to reduce the master equations of DFB laser to the simple balance equations used to describe a system wi th lumped parameters. Generation conditions for lasers with pump-induc ed stochastic DFB were investigated and the possibilities of optical b istability and ultrashort pulse production explored. Analytical expres sions suitable for practical evaluation of parameters of ultrashort pu lse generation were obtained. A review of experimental results and an analysis of properties and merits of DFB lasers as sources of ultrasho rt pulses were given.