Photosensitive holographic glass - new approach to creation of high power lasers
Abbreviated Journal Title
Phys. Chem. Glasses-Eur. J. Glass Sci. Technol. Part B
Keywords
Chemistry, Physical; Materials Science, Ceramics
Abstract
A photosensitive glass demonstrating refractive index decrement after exposure to UV radiation followed by thermal development is used for phase volume hologram recording. This photo-thermo-refractive (PTR) glass is a sodium zinc aluminium silicate glass doped with cerium, silver and fluorine. Spatial modulation of refractive index resulted from precipitation of nanocrystalline phase of sodium fluoride. Volume Bragg gratings recorded in this glass, show extremely narrow spectral and angular selectivity and have low losses combined with high tolerance to laser radiation. These gratings possess a unique ability to produce laser beam transformations directly in angular space. This feature paves a way to creation of high power semiconductor lasers with stable narrow emission spectra and diffraction limited divergence. This approach is based on three types of holographic optical elements made from PTR glass. They are an output coupler providing single transverse mode oscillation for broad area emitters, a phase coupling clement providing coherent emission from a number of spatially separated lasers, and a spectral beam combiner summarising a number of laser beams with different wavelengths within a single beam with diffraction limited divergence.
Journal Title
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B
Volume
48
Issue/Number
3
Publication Date
1-1-2007
Document Type
Article; Proceedings Paper
Language
English
First Page
123
Last Page
128
WOS Identifier
ISSN
1753-3562
Recommended Citation
"Photosensitive holographic glass - new approach to creation of high power lasers" (2007). Faculty Bibliography 2000s. 7165.
https://stars.library.ucf.edu/facultybib2000/7165
Comments
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