Photosensitivity of Ge-doped phosphate glass to 244 nm irradiation

S. Suzuki, A. Schülzgen, S. Sabet, J. V. Moloney, N. Peyghambarian

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10 Scopus citations


UV photosensitivity of Ge-doped phosphate glasses is examined by writing photoinduced gratings in bulk glass samples. Radiation-induced index changes up to ∼3.5× 10-5 were obtained by diffraction efficiency measurements of UV written gratings. In contrast to phosphate glasses without intentional doping, no significant photodarkening at visible wavelength was observed in Ge-doped phosphate glasses after UV exposure. The measured index changes demonstrate the potential of Ge-doped phosphate glasses for the fabrication of a fiber Bragg grating, a key component for phosphate-glass-based photonic devices.

Original languageEnglish (US)
Article number171913
JournalApplied Physics Letters
Issue number17
StatePublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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