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Proceedings Paper

Band shape improvement techniques
Author(s): David H. Cushing
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Paper Abstract

Filters for Wavelength Division Multiplexers with very straight slopes and virtually no ripple are designed. Filters for DWDM applications are shown with the simplest improvements. Filters designed with a variety of recipes that give similar results are analyzed for broad band seven cavity types. All the recipes use "Quarter-wave designs only" to simplify manufacturing. Filters with very broad bandpasses are designed. These filters use equivalent refractive indices for matching the admittance of the general filter to the environment that it is in. More than 14 cavities are possible. These are much sharper than typical long pass filters of the same blocking density.

Paper Details

Date Published: 19 October 2000
PDF: 9 pages
Proc. SPIE 4094, Optical and Infrared Thin Films, (19 October 2000); doi: 10.1117/12.404749
Show Author Affiliations
David H. Cushing, JDS Uniphase Corp. (United States)


Published in SPIE Proceedings Vol. 4094:
Optical and Infrared Thin Films
Michael L. Fulton, Editor(s)

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