Pan Zhongben, Wang Li, Bae Ji Eun, Rotermund Fabian, Wang Yicheng, Zhao Yongguang, Loiko Pavel, Mateos Xavier, Griebner Uwe, Petrov Valentin, Chen Weidong
Opt Express. 2021 Nov 22;29(24):40323-40332. doi: 10.1364/OE.445584.
Sub-100 fs pulse generation from a passively mode-locked Tm,Ho-codoped cubic multicomponent disordered garnet laser at ∼2 µm is demonstrated. A single-walled carbon nanotube saturable absorber is implemented to initiate and stabilize the soliton mode-locking. The Tm,Ho:LCLNGG (lanthanum calcium lithium niobium gallium garnet) laser generated pulses as short as 63 fs at a central wavelength of 2072.7 nm with an average output power of 63 mW at a pulse repetition rate of ∼102.5 MHz. Higher average output power of 121 mW was obtained at the expense of longer pulse duration (96 fs) at 2067.6 nm using higher output coupling. To the best of our knowledge, this is the first report on mode-locked operation of the Tm,Ho:LCLNGG crystal.
演示了在约2 µm波长下，从被动锁模掺Tm、Ho的立方多组分无序石榴石激光器产生亚100 fs脉冲。采用单壁碳纳米管可饱和吸收体来启动和稳定孤子锁模。Tm,Ho:LCLNGG（镧钙锂铌镓石榴石）激光器在中心波长2072.7 nm处产生了短至63 fs的脉冲，脉冲重复频率约为102.5 MHz，平均输出功率为63 mW。使用更高的输出耦合，在2067.6 nm处获得了121 mW的更高平均输出功率，但代价是脉冲持续时间更长（96 fs）。据我们所知，这是关于Tm,Ho:LCLNGG晶体锁模运行的首次报道。
