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Modal cutoff condition for an optical waveguide with a hypocycloidal cross section
Author(s) -
Srinivasa Rao M. P.,
Prasad B.,
Khastgir P.,
Ojha S. P.
Publication year - 1997
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19970220)14:3<177::aid-mop13>3.0.co;2-5
Subject(s) - cutoff , waveguide , cutoff frequency , square (algebra) , microwave , modal , section (typography) , cross section (physics) , modal analysis , optics , physics , deformation (meteorology) , geometry , materials science , acoustics , mathematics , computer science , vibration , quantum mechanics , operating system , polymer chemistry , meteorology
The characteristic equation for an optical waveguide with a hypocycloidal cross section is obtained. This cross section can be thought of as having the shape of a distorted square and leads to a tolerance analysis for deformation in a square waveguide. 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 conventional fiber and also that of a waveguide with a square cross section. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 14, 177–180, 1997