Chinese Optics Letters, 2016, 14 (9): 091401, Published Online: Aug. 3, 2018
Actively Q -switched ring Tm-doped fiber laser with free space structure
140.3480 Lasers, diode-pumped 140.3510 Lasers, fiber 140.3538 Lasers, pulsed 140.3540 Lasers, Q-switched
Abstract
We report a cladding-pumped actively Q -switched ring Tm-doped fiber laser (TDFL). This laser is Q -switched by a free space acousto-optic modulator. A pulse energy up to 150 μJ with a pulse width of 207 ns at a repetition rate of 100 Hz is achieved for a cavity optical length of 6.68 m. The pulse amplitude’s stability at this repetition rate is better than 95%. To the best of our knowledge, this is the first free space structure Q -switched ring TDFL report.
Wei Liu, Youlun Ju, Tongyu Dai, Liwei Xu, Jinhe Yuan, Chao Yang, Baoquan Yao, Xiaoming Duan. Actively