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Proceedings Paper

Comparison of photorefractive effects and photogenerated components in polarization-maintaining fibers
Author(s): Sotiris E. Kanellopoulos; Luiz Carlos Guedes Valente; Vincent A. Handerek; Alan J. Rogers
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Paper Abstract

We have observed several differing photorefractive effects on transmission in polarization maintaining optical fibers. Both the strain-induced and shape-induced birefringence fibers can exhibit strong photorefractive behavior, depending on fiber composition, structure and pre- treatment, while pre-treatment alone can influence a single fiber sample to exhibit differing behavior. Subsets of these transmission effects appear to originate from qualitatively differing photorefractive mechanisms which we have not identified. Contrasting behavior is most clearly seen in the characteristics of photo-generated components such as reflection gratings and polarization couplers. High-efficiency polarization couplers, including 100% and overcoupled versions, can be made in some fibers, but can apparently always be erased by heating to 240 degree(s)C. Reflection gratings written in a fresh fiber sample appear to be thermally stable. However, further gratings, written in the same fiber sample after optical erasure of the original grating, are thermally erasable.

Paper Details

Date Published: 30 December 1991
PDF: 11 pages
Proc. SPIE 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber, (30 December 1991); doi: 10.1117/12.51149
Show Author Affiliations
Sotiris E. Kanellopoulos, King's College London (United Kingdom)
Luiz Carlos Guedes Valente, King's College London (United Kingdom)
Vincent A. Handerek, King's College London (United Kingdom)
Alan J. Rogers, King's College London (United Kingdom)

Published in SPIE Proceedings Vol. 1516:
International Workshop on Photoinduced Self-Organization Effects in Optical Fiber

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