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Neutron irradiation effects on fibers operating at 1.3 um and 1.55 um

Neutron irradiation produces defects in silica glass which could lead to permanent loss in transmission of signals through an optical fiber made from this material. This paper reports on a study aimed at gaining a deeper understanding of the nature of damage caused by neutron irradiation to silica glass optical fibers operating at 1.3//m and 1.55/im. The data obtained so far indicates that the radiation induced damage has less effect on the transmission at 1.3//m than on the transmission at 1.55/im. The implications of this significant observation, and the details of the experimental techniques utilised in this study will be discussed in this paper.