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Proceedings Article

Cascaded solid-spaced filters for DWDM applications

[+] Author Affiliations
Johan Floriot, Fabien Lemarchand, Michel Lequime

Institut Fresnel, CNRS-ENSPM (France)

Proc. SPIE 5250, Advances in Optical Thin Films, 384 (February 25, 2004); doi:10.1117/12.514048
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From Conference Volume 5250

  • Advances in Optical Thin Films
  • Claude Amra; Norbert Kaiser; H. Angus Macleod
  • St. Etienne, France | September 30, 2003

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.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Johan Floriot ; Fabien Lemarchand and Michel Lequime
"Cascaded solid-spaced filters for DWDM applications", Proc. SPIE 5250, Advances in Optical Thin Films, 384 (February 25, 2004); doi:10.1117/12.514048; http://dx.doi.org/10.1117/12.514048


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