Chinese Optics Letters, 2016, 14 (7): 071404, Published Online: Aug. 3, 2018   

MoS2 saturable absorber for single frequency oscillation of highly Yb-doped fiber laser

Baole Lu 1,2,3,*Limei Yuan 1,2,3Xinyuan Qi 4Lei Hou 1,2,3Bo Sun 1,2,3Pan Fu 1,2,3Jintao Bai 1,2,3,4
Author Affiliations
1 National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), Institute of Photonics and Photonics-Technology, Northwest University, Xi’an 710069, China
2 Shaanxi Engineering Technology Research Center for Solid State Lasers and Application, Xi’an 710069, China
3 Institute of Photonics and Photonics-Technology, Provincial Key Laboratory of Photoelectronic Technology, Northwest University, Xi’an 710069, China
4 School of Physics, Northwest University, Xi’an 710069, China
Abstract
In this Letter, a single-frequency fiber laser using a molybdenum disulfide (MoS2) thin film as a saturable absorber is demonstrated. We use a short length of highly Yb-doped fiber as the gain medium and a fiber ferrule with MoS2 film adhered to it by index matching gel (IMG) that acts as the saturable absorber. The saturable absorber can be used to discriminate and select the single longitudinal modes. The maximum output power of the single-frequency fiber laser is 15.3 mW at a pump power of 130 mW and the slope efficiency is 15.3%. The optical signal-to-noise ratio and the laser linewidths are 60 dB and 5.89 kHz, respectively.

Baole Lu, Limei Yuan, Xinyuan Qi, Lei Hou, Bo Sun, Pan Fu, Jintao Bai. MoS2 saturable absorber for single frequency oscillation of highly Yb-doped fiber laser[J]. Chinese Optics Letters, 2016, 14(7): 071404.

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