摘要： In this work, a photo-annealing effect of gamma-irradiated erbium-doped glass fibre is investigated. Two commercial erbium-doped fibres (EDFs) with different doping concentrations were sealed inside a chamber with a cobalt-60 gamma source for 6 h to give an accumulated dose of 3.18 kGy. A tunable femtosecond pulsed laser with a repetition rate of 80 MHz was then used to pump EDF to generate 1550 nm fluorescence and green up-conversion emission, resulting in the annealing effect of the gamma-irradiated EDF. The fluorescence power of gamma-irradiated EDF with a moderate level of doping was almost returned to the initial state by photo-annealing, unlike that of a heavily doped EDF. This finding may facilitate the development of anti-irradiated superfluorescence fibre source for space navigation. 其他題名： JPhysD 其他題名： J. Phys. D: Appl. Phys 出版者： Bristol: IOP Publishing 出版日期： 2013-12-11 出處： Journal of physics. D, Applied physics, 2013-12, Vol.46 (49), p.495113-6 資源來源： Institute of Physics Journals 版權： 2013 IOP Publishing Ltd 版權： 2015 INIST-CNRS 識別號： ISSN: 0022-3727 識別號： EISSN: 1361-6463 識別號： DOI: 10.1088/0022-3727/46/49/495113 識別號： CODEN: JPAPBE
