Wang Yunpeng, Dai Tongyu, Liu Xinyu, Ju Youlun, Yao Baoquan
Opt Lett. 2019 Dec 15;44(24):6049-6052. doi: 10.1364/OL.44.006049.
A dual-wavelength injection-seeded -switched Ho:YLF laser for differential absorption lidar pumped by the thulium-doped fiber laser was demonstrated. The single-frequency Ho:YLF seed laser was achieved by a pair of highly anti-misalignment corner cubes. The wavelength of an online seed laser was corrected to the P12 absorption line at 2064.414 nm by using a absorption cell. At the pulse repetition frequency of 100 Hz, the single-frequency pulsed energy was 16.1 mJ with the pulse width of 221.3 ns after a single-pass amplifier. The full width at half-maximum of a single-frequency pulsed spectrum was about 3.87 MHz, and the fluctuation of center frequency was 2.8 MHz in 30 min.
展示了一种由掺铥光纤激光器泵浦的用于差分吸收激光雷达的双波长注入种子锁模 Ho:YLF 激光器。单频 Ho:YLF 种子激光器由一对高抗失准角锥棱镜实现。通过使用一个吸收池，将在线种子激光器的波长校正到 2064.414 nm 的 P12 吸收线。在 100 Hz 的脉冲重复频率下，单频脉冲能量在单通放大器后为 16.1 mJ，脉冲宽度为 221.3 ns。单频脉冲光谱的半高全宽约为 3.87 MHz，中心频率在 30 分钟内的波动为 2.8 MHz。
