全光纤结构高功率主振荡功率放大型单频光纤激光器

摘要

研制了一台全光纤结构主振荡功率放大型掺镱单频光纤激光器.该光纤激光器包括种子激光器和级联放大器两部分.种子激光器是自行搭建的环形腔结构的单频窄线宽光纤激光器.在976nm半导体激光器泵浦下,能够输出线宽为10MHz量级、波长为1079.88nm的单频光,激光功率为10.02W,光-光转化效率为58.9％,斜率效率为65.3％.%An all-fiber master oscillator power amplifier (MOPA) structured single-frequency fiber laser is demonstrated. The seed laser is a self - designed ring cavity structure which outputs a single - frequency laser beam . The 10 MHz linewidth, 1 079. 88 nm MOPA laser has a output power of 10. 02 W, when pumped by a diode laser at 976 nm. The signal-to-noise is about 30 dB, the slope efficiency is 65. 3% and the optical-optical conversion efficiency is 58. 9%.