Andrianov Alexey V, Anashkina Elena A
Opt Express. 2021 Feb 15;29(4):5580-5587. doi: 10.1364/OE.415787.
We demonstrate experimentally Raman lasing in an AsS 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.
我们通过实验展示了在由C波段窄线激光器泵浦的AsS硫系玻璃微球中的拉曼激光。当在1.522 - 1.574μm范围内调谐泵浦激光波长时，可实现从1.610μm到1.663μm的单模拉曼激光调谐。当泵浦功率显著超过阈值时，可实现多模级联拉曼激光，在波长为2.01μm时最大拉曼阶数为四。我们还报告了在1.38μm处产生的上转换波，这被解释为泵浦波与二阶拉曼产生的波之间四波混频的结果。基于Lugiato - Lefever方程模拟的数值结果与实验结果相符。
