Perturbation theory of optical fibres with power-law core profile |
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Authors: | R. A. Sammut A. K. Ghatak |
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Affiliation: | (1) Department of Applied Mathematics, Institute of Advanced Studies, Australian National University, 2600 Canberra, A. C. T., Australia |
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Abstract: | The characteristics of graded-index optical fibres with power-law core profile and homogeneous cladding have been studied using perturbation theory. Analytical expressions are derived for the cut-off frequency, propagation constant and, in the case of leaky modes, the attenuation coefficient of an arbitrary mode on such a fibre. For the case of monomode fibres, excellent agreement is found with existing theoretical results for the propagation constant of the HE11 mode and cut-off frequency of the TE01 mode.On leave from Department of Physics, IIT, New Delhi, India. |
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