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Modal cutoff condition for an optical waveguide with a hypocycloidal cross section

✍ Scribed by M. P. Srinivasa Rao; B. Prasad; P. Khastgir; S. P. Ojha

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
125 KB
Volume
14
Category
Article
ISSN
0895-2477

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✦ Synopsis

The characteristic equation for an optical wa¨eguide with a hypocycloidal cross section is obtained. This cross section can be thought of as ha¨ing the shape of a distorted square and leads to a tolerance analysis for deformation in a square wa¨eguide. The complex geometry makes the analysis of modes difficult. With some simplifications the cutoff condition under the weak-guidance condition is obtained. A brief comparison is then made with the cutoff condition for the con¨entional fiber and also that of a wa¨eguide with a square cross section.

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