6533b857fe1ef96bd12b437e

RESEARCH PRODUCT

Linearly polarized all-fiber laser using a short section of highly polarizing microstructured fiber

Jose Luis CruzAntonio DiezMartina Delgado-pinarMiguel V. Andres

subject

PHOSFOSPolarization rotatorMaterials sciencePhysics and Astronomy (miscellaneous)business.industryPhysics::OpticsPolarization-maintaining optical fiberMicrostructured optical fiberGraded-index fiberOpticsFiber laserDispersion-shifted fiberOptoelectronicsbusinessInstrumentationPhotonic-crystal fiber

description

A linearly polarized all-fiber erbium laser is presented in this work. The polarization selective element consists on a piece of a single-mode, polarizing microstructured fiber, which is placed within the laser cavity. The microstructured fiber shows a regular lattice of air-holes, in which four holes next to the core were enlarged. This fiber shows a polarization dependent loss of 16 dB/m around 1550 nm. The laser cavity presents different losses for each polarization and, as a consequence, a highly polarized emission is obtained. The polarization ratio of the emitted power was in excess of 20 dB.

https://doi.org/10.1002/lapl.200710100