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Proceedings Paper

Modal cutoffs in symmetric buried channel waveguide (BCW) couplers
Author(s): James A. Besley; John D. Love; Francois J. Ladouceur; Graeme D. Maxwell
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Paper Abstract

The cutoff wavelengths of the higher-order supermodes of symmetric square-core and rectangular-core step-profile couplers are determined in order to interpret the spectral response of a practical single-mode buried-channel waveguide coupler. Our results suggest the possibility of simple diagnostic tests for such devices and highlight the design constraints imposed by second order supermodes. We also compare the behavior of these couplers with that of circular-core couplers to illustrate how the geometry of each core affects the coupler cutoff characteristics.

Paper Details

Date Published: 7 July 1998
PDF: 10 pages
Proc. SPIE 3283, Physics and Simulation of Optoelectronic Devices VI, (7 July 1998); doi: 10.1117/12.316721
Show Author Affiliations
James A. Besley, Australian National Univ. (Australia)
John D. Love, Australian National Univ. (Australia)
Francois J. Ladouceur, Australian National Univ. (Australia)
Graeme D. Maxwell, British Telecom Research Labs. (United Kingdom)


Published in SPIE Proceedings Vol. 3283:
Physics and Simulation of Optoelectronic Devices VI
Marek Osinski; Peter Blood; Akira Ishibashi, Editor(s)

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