Tunable Raman lasing in an As<sub>2</sub>S<sub>3</sub> chalcogenide glass microsphere
Alexey V. Andrianov, Elena A. Anashkina
Abstract
chalcogenide glass microsphere pumped by a C-band narrow line laser. Single-mode Raman lasing tunable from 1.610 μm to 1.663 μm is attained when tuning a pump laser wavelength in the 1.522-1.574 μm range. When the pump power significantly exceeds the threshold, multimode cascade Raman lasing is achieved with the maximum Raman order of four at a wavelength of 2.01 μm. We also report an up-converted wave generation at 1.38 μm which is interpreted as the result of four-wave mixing between the pump wave and the wave generated in the second Raman order. The numerical results based on the simulation of the Lugiato-Lefever equation agree with the experimental results.
Topics & Concepts
Lasing thresholdRaman spectroscopyMaterials scienceRaman laserOpticsLaserChalcogenideRaman scatteringChalcogenide glassOptoelectronicsWavelengthFour-wave mixingCoherent anti-Stokes Raman spectroscopyLaser pumpingRaman amplificationMulti-mode optical fiberNonlinear opticsPhysicsOptical fiberPhase-change materials and chalcogenidesPhotonic and Optical DevicesOptical Coherence Tomography Applications