Bai Jinzhi, Lin Jincai, Chen Xinqiao, et al. Design of triple-wavelength Er-doped fiber ring lasers[J]. 2015,(1):42-43. DOI: 10.13756/j.gtxyj.2015.01.014.
This paper designs a simple-structured low-cost Triple-Wavelength Erbium-Doped Fiber Laser(TW-EDFL)with output wavelengths of 1 530
1 540 and 1 550 nm respectively and a stable output power of 1.5mW.It investigates the relationship between the length of Erbium-Doped Fiber(EDF)
pump power and output power and concludes that the optimum length of EDF is 4.15 mand the optimum pump power is 200 mW.It balances the gain and loss of 3signal lights in the resonant cavity by adding 3Variable Optical Attenuators(VOA)and using the gain equalization method
thus avoiding the mode competition effect of EDF at room temperature.