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Properties of photonic crystal fiber and the effective index model

Properties of photonic crystal fiber and the effective index model
Properties of photonic crystal fiber and the effective index model
We report on the waveguiding properties of a new type of low-loss optical waveguide. The photonic crystal fiber can be engineered to support only the fundamental guided mode at every wavelength within the transparency window of silica. Experimentally, a robust single mode has been observed over a wavelength range from 337nm to beyond 1550nm (restricted only by available wavelength sources). By studying the number of guided modes for fibers with different parameters and the use of an effective index model we are able to quantify the requirements for monomode operation. The requirements are independent of the scale of the fiber for sufficiently short wavelengths. Further support for the predictions of the effective index model is given by the variation of the spot size with wavelength,
0740-3224
748-752
Knight, J.C.
856fc97c-953c-4928-b389-40cdce61c078
Birks, T.A.
65bb633e-6fa2-40f7-a1c6-748bb5ca2178
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
de Sandro, J.P.
1577a28a-db8b-4bae-97af-c7dc8b23cea6
Knight, J.C.
856fc97c-953c-4928-b389-40cdce61c078
Birks, T.A.
65bb633e-6fa2-40f7-a1c6-748bb5ca2178
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
de Sandro, J.P.
1577a28a-db8b-4bae-97af-c7dc8b23cea6

Knight, J.C., Birks, T.A., Russell, P.St.J. and de Sandro, J.P. (1998) Properties of photonic crystal fiber and the effective index model. Journal of the Optical Society of America B, 15 (3), 748-752. (doi:10.1364/JOSAA.15.000748).

Record type: Article

Abstract

We report on the waveguiding properties of a new type of low-loss optical waveguide. The photonic crystal fiber can be engineered to support only the fundamental guided mode at every wavelength within the transparency window of silica. Experimentally, a robust single mode has been observed over a wavelength range from 337nm to beyond 1550nm (restricted only by available wavelength sources). By studying the number of guided modes for fibers with different parameters and the use of an effective index model we are able to quantify the requirements for monomode operation. The requirements are independent of the scale of the fiber for sufficiently short wavelengths. Further support for the predictions of the effective index model is given by the variation of the spot size with wavelength,

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Published date: 1998

Identifiers

Local EPrints ID: 77933
URI: https://eprints.soton.ac.uk/id/eprint/77933
ISSN: 0740-3224
PURE UUID: 452558c6-68e8-48e6-a71f-eae8f56c19c1

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Date deposited: 11 Mar 2010
Last modified: 17 Jul 2019 00:13

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Contributors

Author: J.C. Knight
Author: T.A. Birks
Author: P.St.J. Russell
Author: J.P. de Sandro

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