Simple technique for the accurate design of square bandpass WDM interference filters

Pierre G. Verly

doi:10.1117/12.513753

25 February 2004 Simple technique for the accurate design of square bandpass WDM interference filters

Pierre G. Verly

Proceedings Volume 5250, Advances in Optical Thin Films; (2004) https://doi.org/10.1117/12.513753
Event: Optical Systems Design, 2003, St. Etienne, France

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.

Citation Download Citation

Pierre G. Verly "Simple technique for the accurate design of square bandpass WDM interference filters", Proc. SPIE 5250, Advances in Optical Thin Films, (25 February 2004); https://doi.org/10.1117/12.513753

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