Optical Tunnelling: Radiation Losses in Bent Fibre-Optic Waveguides
- 1 May 1988
- journal article
- Published by Oxford University Press (OUP) in IMA Journal of Applied Mathematics
- Vol. 41 (2) , 85-103
- https://doi.org/10.1093/imamat/41.2.85-a
Abstract
We present a new method for determining the radiation losses produced when a weakly-guiding optical fibre is bent. In contrast to previous work, we make no assumptions about the type of bending allowed; the centreline of the fibre is allowed to follow any path in three-dimensionalspace. In particular, the method clearly shows the effects due both to curvature andto torsion.In addition, the result we obtain contains a detailed description of the distribution of theradiated energy.Keywords
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