A simple technique for evaluation of transmission coefficient at the splice with angular offset and transverse offset for first higher mode propagation in graded index fibers |
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Authors: | Ashima Bose SC Saha |
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Institution: | a Department of Physics, Surendranath College, 24-2, M.G .Road, Kolkata 700009, West Bengal, India b Department of Electronics, Vidyasagar University, Midnapore 721102, West Bengal, India |
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Abstract: | We present simple and accurate analytical expressions for transmission coefficient at the splice with angular offset and transverse offset in case of first higher mode propagation in graded index fibers. We employ the simple series expression for first higher order modal field for graded index fiber. The evaluation of the concerned parameters based on our formalism requires very little computations. Here, we show that our estimations match excellently well with the exact results in case of step and parabolic index fibers. Further, splice being highly tolerant for longitudinal separation, our analysis is judiciously restricted to the case of transverse and angular mismatches only. The analysis should find application in dual mode graded index fiber in all optical technology. |
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Keywords: | Graded index fiber LP11 mode Transmission coefficient at the splice for offset |
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