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Proceedings Article

Tunable flat-top polarization interleaver filters based on cascaded film cavity structure

[+] Author Affiliations
Juan Zhang, Shuai Yu, Xue Li, Sen Guo

Shanghai Univ. (China)

Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860P (January 19, 2011); doi:10.1117/12.887619
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From Conference Volume 7986

  • Passive Components and Fiber-Based Devices VII
  • Perry P. Shum
  • Shanghai, China | December 08, 2010

abstract

Starting from the theory of one-dimensional photonic crystal, a flat-top polarization interleaver filter composed of cascaded thin-film glass cavities is proposed. A detailed design example with three cascaded thin-film glass cavities is given in the paper. The minimum transmissivity of P polarized light at passband is higher than 99.6% and the maximum transmissivity of S polarized light is about 0.1%. The center-frequencies of the transmissivity of P polarized light accord with the ITU standard. The proposed interleaver filter not only has the characteristics of very simple structure, easy to accomplish, but also has high transmittance for P polarized light and good cut-off characteristic for S polarized light. When rotating the cascaded thin-film glass cavities in the horizontal plane with small angle, the filter has the center-frequency tunability characteristic as well.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Juan Zhang ; Shuai Yu ; Xue Li and Sen Guo
"Tunable flat-top polarization interleaver filters based on cascaded film cavity structure", Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860P (January 19, 2011); doi:10.1117/12.887619; http://dx.doi.org/10.1117/12.887619


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