Wavelength-Tunable Single Frequency Ytterbium-Doped Fiber Laser with Loop Mirror Filter
LU Bao-Le1,2,3, HUANG Sheng-Hong1,2,3, YIN Mo-Juan1,2,3, CHEN Hao-Wei1,2,3, REN Zhao-Yu1,2,3, BAI Jin-Tao1,2,3,4
1National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), Institute of Photonics and Photon-Technology, Northwest University, Xi'an 710069 2Shaanxi Engineering Technology Research Center for Solid State Lasers and Application, Xi'an 710069 3Institute of Photonics and Photon-technology, Provincial Key Laboratory of Photo-electronic Technology, Northwest University, Xi'an 710069 4Department of Physics, Northwest University, Xi'an 710069
Abstract：By using a loop mirror filter, a novel wavelength-tunable single-frequency ytterbium-doped fiber laser is developed to select single longitudinal modes in a linear cavity. The output wavelength could be tuned 2.4 nm intervals range from 1063.3 to 1065.7 nm with the temperature change of the fiber Bragg grating. The maximum output power could reach 32 mW while the pump power increases to 120 mW. The corresponding optical-to-optical conversion efficiency is 26.7% and the slope efficiency is 33.9%, respectively. The output power fluctuation is below 2%, and its highest signal-to-noise ratio is 60 dB.
2015, Vol. 32 
