Thermal stability of self-organized gratings and defects in Ge- and Ge-P-doped silica core fibers

Tsung-Ein Tsai; E. Joseph Friebele; David L. Griscom

doi:10.1117/12.165649

22 December 1993 Thermal stability of self-organized gratings and defects in Ge- and Ge-P-doped silica core fibers

Tsung-Ein Tsai, E. Joseph Friebele, David L. Griscom

Proceedings Volume 2044, Photosensitivity and Self-Organization in Optical Fibers and Waveguides; (1993) https://doi.org/10.1117/12.165649
Event: Optics Quebec, 1993, Quebec City, Canada

Abstract

Thermal stabilities of photoinduced paramagnetic defects in second-harmonic (SHG) generation Ge-P-doped silica fibers and in Ge- and Ge-P-doped silica preforms are studied by electron-spin-resonance and compared with that of the reported self-organized gratings. Our data suggests that the charge trapping sites for the electric-field-induced SHG are Ge(1), Ge(2) and Ge E'_d1 centers. The defects responsible for the Bragg gratings are Ge E'-type centers. Thermal darkening in Ge-doped silica core fibers reported is likely due to the thermal induced Ge E'_d1 center.

Citation Download Citation

Tsung-Ein Tsai, E. Joseph Friebele, and David L. Griscom "Thermal stability of self-organized gratings and defects in Ge- and Ge-P-doped silica core fibers", Proc. SPIE 2044, Photosensitivity and Self-Organization in Optical Fibers and Waveguides, (22 December 1993); https://doi.org/10.1117/12.165649

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