摘要
Bismuth nanosheets(Bi-NSs) were successfully prepared and employed as saturable absorbers to generate a diodepumped dual-wavelength Er^(3+):SrF_2 laser in the mid-infrared region. Q-switched pulses with a maximum output power of 0.226 W were obtained at an absorbed pump power of 1.97 W. A repetition rate of 56.20 kHz and a minimum pulse duration of 980 ns were achieved. To the best of our knowledge, we present the first application of Bi-NSs in a mid-infrared all-solid-state laser. The results prove that Bi-NSs may be applied as an optical modulator in mid-infrared photonic devices or as a mode-locker and Q-switcher.
Bismuth nanosheets （Bi-NSs） were successfully prepared and employed as saturable absorbers to generate a diodepumped dual-wavelength Er^3＋ ：SrF2 laser in the mid-infrared region. Q-switched pulses with a maximum output power of 0.226 W were obtained at an absorbed pump power of 1.97 W. A repetition rate of 56.20 kHz and a minimum pulse duration of 980 ns were achieved. To the best of our knowledge, we present the first application of Bi-NSs in a mid-infrared all-solid-state laser. The results prove that Bi-NSs may be applied as an optical modulator in mid-infrared photonic devices or as a mode-locker and Q-switcher.
基金
National Natural Science Foundation of China(NSFC)(61475089,61435010,61635012)
Development Projects of Shandong Province Science and Technology(2017GGX30102)
National Key Research and Development Program of China(2016YFB0701002)
Science and Technology Planning Project of Guangdong Province(2016B050501005)
Science and Technology Innovation Commission of Shenzhen(KQTD2015032416270385)
