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Proceedings Paper

Simple technique for the accurate design of square bandpass WDM interference filters
Author(s): Pierre G. Verly
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Paper Abstract

Narrow bandpass optical interference filters that precisely meet arbitrary Chebychev (equiripple) or maximally flat specifications are designed by refractive index refinement of standard multicavity filters, combined with straightforward manipulations of the solutions. The filters are composed mostly of quarter-wave (QW) layers of two materials. A few non-QW tuning layers are introduced in regions of the multilayer stacks that have a low sensitivity to deposition errors in order to control the passband ripple and halfwidth. Multiple solutions with exactly the same passbands are easily generated, from which those that have the best chance of being successfully fabricated can be selected.

Paper Details

Date Published: 25 February 2004
PDF: 6 pages
Proc. SPIE 5250, Advances in Optical Thin Films, (25 February 2004); doi: 10.1117/12.513753
Show Author Affiliations
Pierre G. Verly, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 5250:
Advances in Optical Thin Films
Claude Amra; Norbert Kaiser; H. Angus Macleod, Editor(s)

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