| 2-μm mode-locked nanosecond fiber laser based on MoS_2 saturable absorber |
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| 作者姓名： | 王小发 彭晓玲 姜秋霞 顾小辉 张俊红 毛雪峰 袁素贞 |
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| 作者单位： | Key Laboratory of Optical Fiber Communication Technology, Chongqing Education Commission, School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 11304409), the Natural Science Foundation of Chongqing City, China (Grant No. CSTC2013jcyjA4004), the Scientific and Technological Research Program of Chongqing Municipal Education Commission, China (Grant No. KJ1500422), and the Special Theme Projects on LCD Industrial Generic Technology Innovation of Chongqing City, China (Grant No. CSTC2015zdcy-ztzx40003). |
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| 摘 要： | 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.
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| 收稿时间： | 2017-05-09 |
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