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Weak guidance modal cutoff analysis of a waveguide having a core cross section bounded by nonconcentric circles

✍ Scribed by U. K. Singh; P. Khastgir; O. N. Singh

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 162 KB
Volume: 15
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(19970620)15:3<179::aid-mop17>3.0.co;2-2

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✦ Synopsis

We make an analytical study of the modal cutoff beha¨ior of a wa¨eguide with an annular core cross section bounded by two nonconcentric circles. The characteristic and cutoff equations are obtained with the use of the weak guidance approximation. Numerical computations show that the number of modes sustained is lowered as the concentric annular cross section becomes nonconcentric.

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