title: Passively mode-locked fiber laser by a cell-type WS2 nanosheets saturable absorber.
abstract: A cell-type saturable absorber has been demonstrated by filling the single mode photonic crystal fiber (SMPCF) with tungsten disulfide (WS2) nanosheets. The modulation depth, saturable intensity, and non-saturable loss of this SA are measured to be 3.53%, 159 MW/cm(2) and 23.2%, respectively. Based on this SA, a passively mode-locked EDF laser has been achieved with pulse duration of 808 fs and repetition rate of 19.57 MHz, and signal-noise-ratio (SNR) of 60.5 dB. Our results demonstrate that the cell-type WS2 nanosheets SA can serve as a good candidate for short-pulse mode locker.
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Peiguang
authors.initials: P
authors.lastname: Yan
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Aijiang
authors.initials: A
authors.lastname: Liu
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Yushan
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: JinZhang
authors.initials: J
authors.lastname: Wang
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Shuangchen
authors.initials: S
authors.lastname: Ruan
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Chen
authors.affiliation: Shenzhen key laboratory of laser engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
authors.forename: Jinfei
authors.initials: J
authors.lastname: Ding