A tunable continuous wave (CW) low temperature operating Tm (6 at.-%),Ho (0.6at.-%):YLF laser pumped by fiber-coupled diode laser is reported. The maximum output power is 4.16 W at 2073 nm by use of 30% output coupling, the slope efficiency is 33%. A tuning range from 2049 to 2081 nm is achieved with a birefringent filter (BF). The factors that contribute to the output power and tuning range are discussed.
© 2006 Chinese Optics Letters
Yufeng Li, Baoquan Yao, Zhenguo Wang, Yuezhu Wang, and Youlun Ju, "Tunable CW Tm,Ho:YLF laser at 2 microns," Chin. Opt. Lett. 4, 470-471 (2006)