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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 15, Iss. 4 — Apr. 1, 1976
  • pp: 1040–1044

Leaky modes on a dielectric waveguide: orthogonality and excitation

Rowland Sammut and Allan W. Snyder  »View Author Affiliations


Applied Optics, Vol. 15, Issue 4, pp. 1040-1044 (1976)
http://dx.doi.org/10.1364/AO.15.001040


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Abstract

Because they are not proper spectral modes, leaky modes do not obey the usual power orthogonality relations for an ideal waveguide. Two methods for circumventing this problem are presented in this paper. One approach is to use the fact that weakly leaky modes are approximately power orthogonal within a restricted region of space to define a new set of slightly coupled modes. The other is to abandon power orthogonality in favor of a more general, mathematically exact orthogonality relation. The relative merits of these two approaches are discussed.

© 1976 Optical Society of America

History
Original Manuscript: November 11, 1974
Published: April 1, 1976

Citation
Rowland Sammut and Allan W. Snyder, "Leaky modes on a dielectric waveguide: orthogonality and excitation," Appl. Opt. 15, 1040-1044 (1976)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-15-4-1040

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