Modal study of plasma cladded cylindrical optical fiber

A.K. Mishra, M. Kumar, D. Kumar and O.N. Singh

Journal of Electromagnetic Waves and Applications, 2013, vol. 27, issue 7, 868-876

Abstract: A theoretical study of cylindrical dielectric waveguide having plasma in the cladding region is investigated. The eigen-value equations for the proposed waveguide and its power calculation have been evaluated using the usual boundary conditions. By using these equations modal dispersion, normalized group velocity, power confinement factor, and fractional modal power curves are drawn for some lower-order TE and TM modes. The nature and shape of the dispersion curve is usual but the group velocity of TM01 mode is largely affected in the presence of plasma. It may also be noted that for a fixed value of plasma density, the fractional modal power sustained by a particular fiber mode can be tuned at the optimum level by adjusting the operating frequency properly. Also, the maximum power is concentrated at the interface instead, at the waveguide axis.

Date: 2013
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DOI: 10.1080/09205071.2013.789411

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