2-μm mode-locked nanosecond fiber laser based on MoS_2 saturable absorber

• 作 者: 王小发 彭晓玲 姜秋霞 顾小辉 张俊红 毛雪峰 袁素贞
• 机 构: Key Laboratory of Optical Fiber Communication Technology, Chongqing Education Commission, School of
• 出 处: Chinese Physics B
• 发表日期: 2017年11期
• 关键词: locked absorber Bragg grating repetition bandwidth cladding pumping narrow tunab

We demonstrated a 2-μm passively mode-locked nanosecond fiber laser based on a MoS_2 saturable absorber(SA).Owing to the effect of nonlinear absorption in the MoS_2 SA, the pulse width decreased from 64.7 to 13.8 ns with increasing pump power from 1.10 to 1.45 W. The use of a narrow-bandwidth fiber Bragg grating resulted in a central wavelength and 3-dB spectral bandwidth of 2010.16 and 0.15 nm, respectively. Experimental results show that MoS_2 is a promising material for a 2-μm mode-locked fiber laser.

Weaving a 2-μm passively mode-locked nanosecond fiber laser based on a MoS_2 saturable absorber (SA) .Owing to the effect of nonlinear absorption in the MoS_2 SA, the pulse width decreased from 64.7 to 13.8 ns with increasing pump power from 1.10 to 1.45 W. The use of a narrow-bandwidth fiber Bragg grating resulted in a central wavelength and 3-dB spectral bandwidth of 2010.16 and 0.15 nm, respectively. Experimental results show that MoS_2 is a promising material for a 2-μm mode-locked fiber laser.