Abstract

The loss resulting from roughness scattering at hole interfaces within solid core photonic crystal fibers is theoretically analyzed and compared with measurements on fabricated fibers. It is found that a model roughness spectrum corresponding to frozen in capillary waves gives results in reasonably good agreement with experiments on small core fibers. In particular, the roughness scattering loss is shown to be only weakly dependent on wavelength. Agreement at a larger core size requires a long length-scale cut-off to be introduced to the roughness spectrum. Due to the long range nature of the roughness correlations, the scattering is non Rayleigh in character and cannot be interpreted in terms of a local photon density of states.

© 2005 Optical Society of America

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History
Original Manuscript: July 29, 2005
Revised Manuscript: September 13, 2005
Published: October 3, 2005

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Author Affiliations

H. Sabert, B. Mangan

BlazePhotonics, UK

T. Birks, J. Knight, P. Russell

University of Bath

P. Roberts, F. Couny

University of Bath and BlazePhotonics

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