6533b86efe1ef96bd12cbeb0
RESEARCH PRODUCT
Dual-kind Q-switching of erbium fiber laser
Alexander V. Kir'yanovJose Luis CruzMiguel V. AndresYuri O. Barmenkovsubject
Distributed feedback laserMaterials sciencePhysics and Astronomy (miscellaneous)business.industryPhysics::OpticsFísicaLaser pumpingÒpticaLaserQ-switchingGain-switchinglaw.inventionOpticslawFiber laserOptoelectronicsLaser power scalingbusinessLasing thresholddescription
Two different regimes of Q-switching in the same implementation of an actively Q-switched erbium-doped fiber laser are demonstrated. Depending on the active fiber length and repetition rate of an intracavity Q-cell (acousto-optic modulator), the laser operates either in the regime of common, rather long and low-power, pulses composed of several sub-pulses or in the one of very short and powerful stimulated Brillouin scattering-induced pulses. The basic physical reason of the laser system to oscillate in one of these two regimes is the existence or absence of CW narrow-line “bad-cavity” lasing in the intervals when the Q-cell is blocked.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-03-03 |