Stable and High OSNR Compound Linear-Cavity Single-Longitudinal-Mode Erbium-Doped Silica Fiber Laser Based on an Asymmetric Four-Cavity Structure
FENG Ting1, YAN Feng-Ping1**, LI Qi1, PENG Wan-Jing1, FENG Su-Chun1, WEN Xiao-Dong1, LIU Peng2, TAN Si-Yu1
1Key Lab of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 2Department of Physics, Xingtai College, Xingtai 054001
Abstract：We propose a stable and high optical signal-to-noise ratio (OSNR) compound linear-cavity single-longitudinal-mode (SLM) erbium-doped silica fiber laser. It consists of three uniform fiber Bragg gratings (FBGs) and two fiber couplers to form a simple asymmetric four-cavity structure to select the longitudinal mode. The stable SLM operation at the wavelength of 1544.053 nm with a 3 dB bandwidth of 0.014 nm and an OSNR of ～60 dB was verified experimentally. Under laboratory conditions, a power fluctuation performance of less than 0.05 dB for 5 h and wavelength variation of less than 0.01 nm for about 150 min is demonstrated. Finally, the characteristic of laser output power as a function of pump power is investigated. The proposed system provides a simple and cost-effective approach to realize a stable SLM fiber laser.
. [J]. 中国物理快报, 2012, 29(10): 104205-104205.
FENG Ting, YAN Feng-Ping, LI Qi, PENG Wan-Jing, FENG Su-Chun, WEN Xiao-Dong, LIU Peng, TAN Si-Yu. Stable and High OSNR Compound Linear-Cavity Single-Longitudinal-Mode Erbium-Doped Silica Fiber Laser Based on an Asymmetric Four-Cavity Structure. Chin. Phys. Lett., 2012, 29(10): 104205-104205.
2012, Vol. 29 
