Title :
Stability of master-slave laser system with nonperfect isolator
Author_Institution :
Tech. Res. Centre of Finland, Espoo, Finland
fDate :
10/1/1990 12:00:00 AM
Abstract :
Injection locking and the stability of two lasers including an unintentional coupling from a slave to a master laser and a weak-optical feedback from a passive-external cavity to the master laser are discussed. The dynamic behavior for various coupling conditions was solved by studying the small fluctuations around the stationary state. When the coupling from the master to the slave laser is taken into account, the slave laser is stable near the boundary of the locked state, with its natural frequency larger than that of the injected light. An unstable slave laser becomes stable with an increasing injection level if it operates at threshold. At threshold, the unintentional coupling does not change the stable region of a weak injection. The region of strong injection is more sensitive to this coupling
Keywords :
feedback; laser cavity resonators; laser mode locking; laser theory; optical isolators; coupling conditions; fluctuations; injected light; injection level; laser coupling; laser injection locking; laser stability; laser threshold; locked state; master laser; master-slave laser system; natural frequency; nonperfect isolator; passive-external cavity; slave laser; stationary state; strong injection; weak injection; weak-optical feedback; Charge carrier density; Fluctuations; Frequency; Injection-locked oscillators; Isolators; Laser feedback; Laser stability; Laser theory; Master-slave; Optical coupling;
Journal_Title :
Lightwave Technology, Journal of
