Photosensitive point defects in optical glasses: Science and applications

The understanding and manipulation of the point defect structure in oxide glasses have been critical to the enhanced performance and reliability of optical-fiber-based, photosensitive photonic devices that currently find widespread application in telecommunications and remote sensing technologies. W...

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Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 166-167; pp. 771 - 781
Main Authors Potter, B.G., Simmons-Potter, K.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2000
Subjects
Glass
Optical phenomena
Photonics
Photosensitivity
Point defects
Photosensitivity
Point defects
42.70.Hj
42.70.Ce
Glass
Optical phenomena
Photonics
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Summary:The understanding and manipulation of the point defect structure in oxide glasses have been critical to the enhanced performance and reliability of optical-fiber-based, photosensitive photonic devices that currently find widespread application in telecommunications and remote sensing technologies. We provide a brief review of past research investigating photosensitive mechanisms in germanosilicate glasses, the primary material system used in telecommunications fibers. This discussion motivates an overview of ongoing work within our laboratories to migrate photosensitive glass technologies to a planar format for integrated photonic applications. Using reactive-atmosphere, RF-magnetron sputtering, we have demonstrated control of glass defect structure during synthesis, thereby controlling both the material photosensitivity (i.e., dispersion and magnitude of the refractive index change) and its environmental stability.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(99)00864-2