High-Stability Superfluorescent Fiber Source Based on an Er3+-Doped Photonic Crystal Fiber
LIU Cheng-Xiang1, ZHANG Li2, WU Xu1, RUAN Shuang-Chen1**
1Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060 2 College of Information Engineering, Shenzhen University, Shenzhen 518060
High-Stability Superfluorescent Fiber Source Based on an Er3+-Doped Photonic Crystal Fiber
LIU Cheng-Xiang1, ZHANG Li2, WU Xu1, RUAN Shuang-Chen1**
1Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060 2 College of Information Engineering, Shenzhen University, Shenzhen 518060
Abstract：A superfluorescent fiber source (SFS) based on an Er3+-doped photonic crystal fiber (EDPCF) is reported. Owing to the temperature insensitivity of the EDPCF, we show that it is possible to improve the mean wavelength stability of an SFS. Using single-backward configuration, the EDPCF SFS mean wavelength variation at temperatures from -40°C to 60°C is less than 100 ppm, indicating that the thermal coefficient of the EDPCF is smaller than 1 ppm/°C and 3–6 times smaller than those of two conventional Er3+-doped fibers under the same experimental conditions. The best performance of the EDPCF-based SFS is obtained between 0°C and 60°C, at which the change in the mean wavelength is only 17.445 ppm.
2012, Vol. 29 
