6533b82cfe1ef96bd128f401
RESEARCH PRODUCT
Actively Q-switched DFB fiber laser for Brillouin sensor applications
Miguel V. AndrésChristian Cuadrado-labordeJose L. CruzAntonio DiezYu. O. Barmenkovsubject
Distributed feedback laserMaterials sciencebusiness.industryPhysics::OpticsPolarization-maintaining optical fiberGraded-index fiberOpticsFiber Bragg gratingFiber laserOptoelectronicsDispersion-shifted fiberbusinessPlastic optical fiberPhotonic-crystal fiberdescription
Q-switching of distributed feedback (DFB) fiber lasers permits to achieve high peak powers, preserving an ultra narrow linewidth [1,2]. The development of a new in-line acousto-optic modulator based on a magnetostrictive actuator, instead of a piezoelectric-based device, permits an efficient excitation of elastic pulses propagating along the optical fiber and an easy access to both emission outputs of the laser. The repetition rate can be continuously adjusted, as well as the amplitude of the elastic pulses. The interaction of these elastic pulses with a fiber Bragg grating written in an erbium-doped fiber permits an actively Q-switched operation of the DFB fiber laser [3]. The birefringence induced in the fiber when writing the grating [4] gives rise to single-polarization emission of the laser [5].
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-01 | CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference |