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Progress towards a photonic band gap fibre

Birks, T.A., Russell, P.St.J., Atkin, D.M. and Wylangowski, G. (1995) Progress towards a photonic band gap fibre At Quantum Electronics Conference (QE12), United Kingdom. 04 - 08 Sep 1995.

Record type: Conference or Workshop Item (Paper)

Abstract

We are currently developing an entirely new type of optical fibre that guides light by Bragg reflection instead of total internal reflection. The fibre will be made from pure silica, using conventional fibre drawing techniques to give a longitudinally invariant structure kilometres in length. In cross-section the fibre will include a hexagonal array of air holes with a pitch of 1-2µm. For a given optical frequency, there are ranges of axial wavevector B for which transverse propagation in this structure is forbidden: the photonic band gaps. It therefore acts as a totally reflecting "cladding" for such B values. A deliberate defect in the two-dimensional periodic structure (perhaps one hole is filled in, or is larger than its neighbours) provides a site for the localisation of light and so acts as the "core". The propagation of light along the defect can be engineered by modifying the unit cell and scale of the structure, giving rise to a number of unique applications.

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More information

Published date: 1995
Additional Information: P1-38
Venue - Dates: Quantum Electronics Conference (QE12), United Kingdom, 1995-09-04 - 1995-09-08

Identifiers

Local EPrints ID: 77019
URI: http://eprints.soton.ac.uk/id/eprint/77019
PURE UUID: c88a3389-3cf8-41c1-84a0-c775c986de1d

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:35

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Contributors

Author: T.A. Birks
Author: P.St.J. Russell
Author: D.M. Atkin
Author: G. Wylangowski

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