Erbium-doped superfluorescent fiber sources (SFS) pumped near 980nm in double-pass backward (DPB) configuration have been characterized through theoretical simulation.

理论研究了双程后向结构掺铒超荧的特。

Erbium ions concentration is obtained by the information of measured coefficients along with modeling of double-pass backward (DPB) superfluorescent fiber source (SFS).

再利用这些系数和复行后向超萤的模拟，得到掺铒的浓度。