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The influence of grating fabrication on radiation sensitivity of the FBGs has been investigated experimentally. The FBGs were fabricated in different process and concentrations. Pre-irradiation and -loading were applied to change the radiation sensitivity of the FBGs. The FBGs were fabricated in photosensitive fiber and coupling single mode fiber with a concentration...
Dense wavelength division multiplexing (DWDM) technology is a promising way for high transmission-rate demand in the ever complex Earth Observation satellites and space station. However, fiber Bragg grating (FBG) filters used in DWDM systems may fail to check out the correct wavelength affected by cosmic rays. In order to analyze the spectra characteristics of FBGs in gamma radiation environment,...
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