Weak guidance in bent and unbent four-layer planar waveguides. A comparative study of dispersion curves

Pankaj Kumar Choudhury, P. Khastgir, S. P. Ojha, L. K. Singh

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A comparative study has been made of the dispersion curves of a four-layer bent and an unbent dielectric slab waveguide under the assumption of the weak guidance approximation. It has been noticed that the introduction of a slight bend to a planar waveguide results in mode-proliferation, and lower order modes show no cutoff at all. This anomalous behaviour of the dispersion curves is not seen in the case of an unbent waveguide structure.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume31
Issue number1 A pt B
Publication statusPublished - 1992
Externally publishedYes

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Planar waveguides
Electronic guidance systems
Waveguides
waveguides
curves
slabs
cut-off
approximation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Weak guidance in bent and unbent four-layer planar waveguides. A comparative study of dispersion curves. / Choudhury, Pankaj Kumar; Khastgir, P.; Ojha, S. P.; Singh, L. K.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 31, No. 1 A pt B, 1992.

Research output: Contribution to journalArticle

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