Under CopyrightHenschel, HenningHenningHenschelHöffgen, StefanStefanHöffgenKuhnhenn, JochenJochenKuhnhennWeinand, UdoUdoWeinand2022-03-049.10.20102010https://publica.fraunhofer.de/handle/publica/22224010.1109/TNS.2009.2039230For the first time the radiation sensitivity of Bragg gratings was investigated as a function of hydrogen loading pressure before and fiber tension during grating inscription, of the recoating procedure, and of the grating temperature. At -50°C the radiation-induced Bragg wavelength shift was about two times higher than at room temperature. This should be considered when selecting Bragg gratings e.g., for certain space applications.enfiber Bragg gratingfiber tensiongamma radiationgrating temperature dependencehydrogen loadingoptical fiber sensorradiation effectrecoatingtype I grating620621journal article