论文信息 - Near-UV photosensitivity of Ge-doped silica fibers

Near-UV photosensitivity of Ge-doped silica fibers

We report for the first time the refractive index grating side-writing in 10 mol.% GeO2-doped fiber by near-UV light of cw Ar+-laser (333 - 364 nm). The magnitude of induced index change as large as 1.9 multiplied by 10-4 at 1.7 multiplied by 105 W/cm2 UV power density has been achieved. The observed gratings have exhibited the same temperature stability as gratings written by KrF excimer laser (248 nm).

Eugeni M. Dianov | Oleg I. Medvedkov | Sergei A. Vasiliev | Dmitry S. Starodubov | A. A. Frolov

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