[10a-W834-1~11] 3.5 Laser system and materials

▲ [10a-W834-5] Q-switched Fiber Laser Using Synthetic Single-crystal Diamond Saturable Absorber

〇(D)Zheyuan Zhang¹, Yuanjun Zhu¹, Pengtao Yuan¹, Hongbo Jiang¹, Zihao Zhao¹, Fulin Xiang¹, Lei Jin¹, Sze Yun Set¹, Shinji Yamashita¹ (1.Tokyo Univ.)

Keywords:Q-switched laser, fiber laser, synthetic diamond

The saturable absorber properties of synthetic single-crystal diamond is demonstrated, and a Q-switched fiber laser using synthetic diamond as saturable absorber (SA) which could achieve multi-wavelength output is proposed and demonstrated. The wave length ranges from 1553-1561 nm with a spectrum spacing of 0.48 nm. The pulse-width of output pulse train varies from 6.4 μs to 3.32 μs and the corresponding repetition rate changes from 28.73 kHz to 114.7 kHz with pump powers between 84.8 to 754.3 mW. In addition, the output power and pulse energy varies from 1.7578 mW to 17.212 mW and from 61.18 nJ to 151.25 nJ respectively in the same region.