2-μm mode-locked nanosecond fiber laser based on MoS2 saturable absorber

doi:10.1088/1674-1056/26/11/114205

Abstract We demonstrated a 2-μm passively mode-locked nanosecond fiber laser based on a MoS₂ saturable absorber (SA). Owing to the effect of nonlinear absorption in the MoS₂ 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 MoS₂ is a promising material for a 2-μm mode-locked fiber laser.

Keywords: nanosecond mode-locked pulses Tm-doped fiber laser MoS₂ fiber Bragg grating

Received: 09 May 2017
Revised: 16 July 2017
Accepted manuscript online:

PACS:	42.60.Fc	(Modulation, tuning, and mode locking)
	42.65.Re	(Ultrafast processes; optical pulse generation and pulse compression)
	42.81.-i	(Fiber optics)

Fund: 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).

Corresponding Authors: Xiao-Fa Wang
E-mail: bluebaby0614@126.com

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Xiao-Fa Wang(王小发), Xiao-Ling Peng(彭晓玲), Qiu-Xia Jiang(姜秋霞), Xiao-Hui Gu(顾小辉), Jun-Hong Zhang(张俊红), Xue-Feng Mao(毛雪峰), Su-Zhen Yuan(袁素贞) 2-μm mode-locked nanosecond fiber laser based on MoS₂ saturable absorber 2017 Chin. Phys. B 26 114205

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2-μm mode-locked nanosecond fiber laser based on MoS2 saturable absorber

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2-μm mode-locked nanosecond fiber laser based on MoS₂ saturable absorber