Elementary volume-phase holograms (Bragg gratings) are recorded into photosensitive lithium-aluminium-silicate glass doped with silver and cerium at a writing wavelength of 302 nm and an exposure dose of 86 J/cm<sup>2</sup>, yielding diffraction efficiencies of 0.06 %. By subsequent annealing, diffraction efficiencies up to 24 % are achieved. The refractive-index changes are accompanied by strong absorption changes from 300 nm to 1200 nm.

© 2003 Optical Society of America

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