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Proceedings Paper

Photosensitive index changes in germania-doped silica glass fibers and waveguides
Author(s): Doug L. Williams; B. James Ainslie; Raman Kashyap; Graeme D. Maxwell; J. R. Armitage; Robert J. Campbell; Richard R. Wyatt
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Paper Abstract

Recent developments in the photosensitivity of germania doped silica glass are reviewed. The cause and nature of the absorption band centered near 240 nm are discussed and possible structures for this defect are reported together with a summary of the proposed mechanisms for the UV index change. Experimental techniques for assessing the refractive index change are listed and this leads to a consideration of the effects of non-ideal grating formation. Mechanisms for enhancing the photosensitivity of fibers and germania doped silica films are assessed using a systematic study of the photosensitivity of fibers fabricated under the different techniques. Finally some of the possible applications for photosensitivity are briefly discussed.

Paper Details

Date Published: 22 December 1993
PDF: 14 pages
Proc. SPIE 2044, Photosensitivity and Self-Organization in Optical Fibers and Waveguides, (22 December 1993); doi: 10.1117/12.165675
Show Author Affiliations
Doug L. Williams, BT Labs. (United Kingdom)
B. James Ainslie, BT Labs. (United Kingdom)
Raman Kashyap, BT Labs. (United Kingdom)
Graeme D. Maxwell, BT Labs. (United Kingdom)
J. R. Armitage, BT Labs. (United Kingdom)
Robert J. Campbell, BT Labs. (United Kingdom)
Richard R. Wyatt, BT Labs. (United Kingdom)


Published in SPIE Proceedings Vol. 2044:
Photosensitivity and Self-Organization in Optical Fibers and Waveguides
Francois Ouellette, Editor(s)

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