Abstract
In this paper, we present two approximations for the fundamental mode of graded-index fibres. The first is a one-parameter analysis which involves computational effort comparable to that involved in the Gaussian approximation and yet gives much better results. The second is a two-parameter analysis which gives much better results than other existing approximations for all values ofV for most graded-index fibres.
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Visiting from Physics Department, Ravenshaw College, Cuttack 753003, India.
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Sharma, A., Hosain, S.I. & Ghatak, A.K. The fundamental mode of graded-index fibres: simple and accurate variational methods. Opt Quant Electron 14, 7–15 (1982). https://doi.org/10.1007/BF00620905
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DOI: https://doi.org/10.1007/BF00620905