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Radiation hardening of optical fibre links by photobleaching with light of shorter wavelength

1996; Institute of Electrical and Electronics Engineers; Volume: 43; Issue: 3 Linguagem: Inglês

10.1109/23.510754

1558-1578

Henning Henschel, O. Köhn, Hans Schmidt,

Photonic Crystal and Fiber Optics

The influence of additionally injected short-wavelength photobleaching light on the radiation hardness of Ge-doped graded index fibres working at 1300 nm wavelength is investigated. Predictions are complicated by the fact that more efficient shortwave bleaching light experiences higher radiation-induced loss. Promising results are found for low fibre temperatures (/spl lsim/-50/spl deg/C) and bleaching light of about 835 nm wavelength.