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Specialty Optical Fibers Handbook
book

Specialty Optical Fibers Handbook

by Alexis Mendez, T. F. Morse
December 2006
Intermediate to advanced
840 pages
28h 20m
English
Academic Press
Content preview from Specialty Optical Fibers Handbook
Chapter 9
Photosensitive Fibers
Andre
´
Croteau and Anne Claire Jacob Poulin
INO, Sainte-Foy, Que
´
bec, Canada
9.1 INTRODUCTION
Photosensitivity is another amazing feature of most specialty optical fibers
(SOFs). The photosensitivity phenomenon is different from photo-darkening
and radiation-darkening, which induces excess losses. There is then no added
background losses due to the fiber Bragg gratings (FBGs) inscribed in the fiber’s
core besides filtered wavelengths.
Photosensitivity of a medium is defined as its capacity to have its refractive
index permanently changed by a modification of its physical or chemical prop-
erties through light exposition.
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Publisher Resources

ISBN: 9780123694065