论文信息 - Dynamic and orientational behavior of UV-induced luminescence bleaching in Ge-doped silica optical fiber.

Dynamic and orientational behavior of UV-induced luminescence bleaching in Ge-doped silica optical fiber.

We report two experiments on UV light-induced bleaching of the 400-nm luminescence associated with the 240-nm absorption band in Ge-doped optical fiber. We have measured the dynamics of the bleaching for different UV intensities and show that it is well fitted by a stretched exponential function, which indicates a site-dependent bleaching rate. We have also shown that the bleaching is anisotropic, confirming a model in which the defects having a dipole moment aligned with the UV light polarization are preferentially excited and bleached.

S Thibault | F Ouellette | J Lauzon | M Poirier

[1] G I Stegeman,et al. Correlation of defect centers with a wavelength-dependent photosensitive response in germania-doped silica optical fibers. , 1991, Optics letters.

[2] M J Yuen,et al. Ultraviolet absorption studies of germanium silicate glasses. , 1982, Applied optics.

[3] Raman Kashyap,et al. Correlation between ultraviolet‐induced refractive index change and photoluminescence in Ge‐doped fiber , 1992 .

[4] F Ouellette,et al. Dynamic polarization coupling in elliptical-core photosensitive optical fiber. , 1992, Optics letters.

[5] S. Poole,et al. Profiling of drawing induced defects in optical fibre preforms , 1992 .

[6] C. Askins,et al. Photoinduced grating and intensity dependence of defect generation in Ge‐doped silica optical fiber , 1992 .

[7] G. Meltz,et al. Formation of Bragg gratings in optical fibers by a transverse holographic method. , 1989, Optics letters.

[8] Masayuki Yamane,et al. Photoluminescence in VAD SiO2:GeO2 Glasses Sintered under Reducing or Oxidizing Conditions , 1989 .

[9] P S Russell,et al. Photoinduced birefringence in optical fibers: a comparative study of low-birefringence and high-birefringence fibers. , 1992, Optics letters.

[10] Steven T. Davey,et al. Direct observation of UV induced bleaching of 240 nm absorption band in photosensitive germanosilicate glass fibres , 1992 .