NDLI: Modal characteristic equation and dispersion curves for an elliptical step-index fiber with a conducting helical winding on the core-cladding boundary

Content Provider	IEEE Xplore Digital Library
Author	Kumar, D. Singh II, O.N.
Copyright Year	1983
Abstract	A special type of elliptical step-index fiber with a conducting helical winding on the core-cladding boundary is proposed and investigated theoretically. Using elliptic cylindrical coordinates, boundary conditions are derived and longitudinal field components for the even and odd modes are obtained. The characteristic equation for the waveguide to be studied is determined by solving the fourth-order determinantal equation, which also contains complex quantities. In order to study the fundamental mode, the modal index /spl nu/ is put as /spl nu/=1. The equations obtained involve modified Mathieu functions of the first order and their derivatives. Applying approximations, cutoff conditions are obtained. Numerical computations are made. Dispersion curves are obtained for different pitch angles of the helical winding.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1416
Ending Page	1424
Page Count	9
File Size	913777
File Format	PDF
ISSN	07338724
Volume Number	20
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Equations Optical waveguides Optical fiber polarization Optical fibers Optical fiber dispersion Electromagnetic waveguides Optical propagation Communication system control Boundary conditions Electromagnetic scattering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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