Radiation-Resisted Er-doped Fiber Fabricated by MCVD Vapor Phase Deposition

摘要

In this paper, we reported radiation-resisted Er-doped fibers (EDF) fabricated by MCVD vaper phase deposition. Vapor phase deposition (VPD) is utilized to insure the precise control of the refractive index profile as well as homogeneous doping. Ce is doped with Er in vapor phase in the quartz tube and collapsed to colorless preforms, which are drew to polymer-coated fibers. These fibers exhibit absorption coefficient of-23 dB/m at 980 nm. After 100 krad of radiation, the induced loss is estimated to be less than 1 dB/m. Er-doped photonic crystal fiber (PCF) is also reported here which shows low radiation induced accentuation (RIA).