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Proceedings Paper

Antiresonant decoupling of parallel dielectric waveguides
Author(s): Carlo Gian Someda
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Paper Abstract

Two open waveguides separated by a finite spacing can be decoupled if the index between them is a suitable function of the transverse coordinates. The proof of this statement relies on vector properties of e. m. waves. On the contrary decoupling is impossible for scalar waves. Therefore it is incompatible with the weakly-guiding approximation. However numerical results and other ones based on perturbation theory show that it can be ohtamed with index differences which are still small enough to be practical. Decoupling can be interpreted physically as an antiresonance of the region between the guides. Examples are presented and potential practical applications are outlined. I.

Paper Details

Date Published: 16 December 1992
PDF: 5 pages
Proc. SPIE 1622, Emerging Optoelectronic Technologies, (16 December 1992); doi: 10.1117/12.636886
Show Author Affiliations
Carlo Gian Someda, Univ. di Padova (Italy)


Published in SPIE Proceedings Vol. 1622:
Emerging Optoelectronic Technologies
Krishna Shenai; Ananth Selvarajan; C. Kumar N. Patel; C. N. R. Rao; B. S. Sonde; Vijai K. Tripathi, Editor(s)

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