Band shape improvement techniques

David H. Cushing

doi:10.1117/12.404749

19 October 2000 Band shape improvement techniques

David H. Cushing

Proceedings Volume 4094, Optical and Infrared Thin Films; (2000) https://doi.org/10.1117/12.404749
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

David H. Cushing "Band shape improvement techniques", Proc. SPIE 4094, Optical and Infrared Thin Films, (19 October 2000); https://doi.org/10.1117/12.404749

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