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Proceedings Paper

Cascaded solid-spaced filters for DWDM applications
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Paper Abstract

We report in this manuscript the study of solid-spaced Fabry-Perot filters. The use of high quality wafers as thick spacers and broadband dielectric mirrors with only few layers provides filters which have almost the same specifications as classical WDM interference filters. Multiple cavity filters, composed of single cavities of equal or different thick spacers are easy to manufacture and exhibit very low absorption and scattering losses. Experimental results concerning simple and double cavity filters with thick spacers centered at 1.56 μm with a maximum transmission more than 98 % and a full-width at half-maximum (FWHM) of about 0.5 μm are exposed. We then propose different solutions for the extension to triple cavity filters with improved spectral properties.

Paper Details

Date Published: 25 February 2004
PDF: 9 pages
Proc. SPIE 5250, Advances in Optical Thin Films, (25 February 2004); doi: 10.1117/12.514048
Show Author Affiliations
Johan Floriot, Institut Fresnel, CNRS-ENSPM (France)
Fabien Lemarchand, Institut Fresnel, CNRS-ENSPM (France)
Michel Lequime, Institut Fresnel, CNRS-ENSPM (France)

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

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