Abstract

This paper discusses the decoloration process of volume phase holograms based on photothermorefractive (PTR) glass under the action of the second harmonic of the pulsed radiation of a neodymium laser. It is shown that the photodecoloration process increases the refractive-index modulation of PTR glass and reduces its absorption in the visible region.

© 2010 Optical Society of America

High-frequency Bragg gratings in a photothermorefractive glass

O. M. Efimov, L. B. Glebov, and V. I. Smirnov
Opt. Lett. 25(23) 1693-1695 (2000)

High-efficiency Bragg gratings in photothermorefractive glass

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Near-IR absorption in high-purity photothermorefractive glass and holographic optical elements: measurement and application for high-energy lasers

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Photo-thermo-refractive glass with sensitivity to visible and near IR radiation

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Opt. Mater. Express 6(12) 3881-3891 (2016)