Du Xueyuan, Zhang Hanwei, Wang Xiaolin, Zhou Pu, Liu Zejin
Opt Lett. 2016 Feb 1;41(3):571-4. doi: 10.1364/OL.41.000571.
We report the result of achieving a random fiber laser (RFL) with record 200-W-level power output. The highest output power is realized by a simple 120 m long cavity at a working wavelength of 1173 nm while pumping at 1120 nm. The maximum observed optical-to-optical efficiency reaches ∼89%, which is believed to be the highest value ever reported for RFLs. In addition, numerical calculations on different order Raman Stokes wave thresholds based on the theoretical model are carried out for comparison with the experimental data. The presented work effectively advances the power scalability, and the numerical model well describes the lasing thresholds in such short cavity RFLs.
我们报告了实现输出功率达到创纪录的200瓦级的随机光纤激光器（RFL）的结果。在1120纳米泵浦的情况下，通过一个简单的120米长的腔，在工作波长1173纳米时实现了最高输出功率。观测到的最大光光效率达到约89%，这被认为是随机光纤激光器所报道的最高值。此外，基于理论模型对不同阶拉曼斯托克斯波阈值进行了数值计算，以便与实验数据进行比较。所展示的工作有效地推动了功率可扩展性，并且该数值模型很好地描述了这种短腔随机光纤激光器中的激光阈值。
