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Novel Liquid Crystal Tunable Flat-Top Optical Interleaver

By Shadi A. Alboon, Alaeddin Abu-Abed, Robert Lindquist, and Hussein R. Al-Zoubi
Progress In Electromagnetics Research B, Vol. 19, 263-283, 2010


In this paper, we propose tunable optical interleaver filters based on the combined Michelson interferometer (MI) and the Gires-Tournois interferometer (GTI) with polarization diversity. The tuning capability is achieved by integrating liquid crystals into the interleaver. In addition to the tunability, it is also shown that the response for this proposed interleaver has a flat-top. Various GTIMI LC-based interleaver structures are discussed in this paper and their performance, in terms of the flat-top and the pass band ripple, are judged. These structures have the advantages of low operation voltage requirements and design simplicity. A GTI-MI interleaver has been fabricated and tested. The experimental results show that the interleaver has tunable response.


Shadi A. Alboon, Alaeddin Abu-Abed, Robert Lindquist, and Hussein R. Al-Zoubi, "Novel Liquid Crystal Tunable Flat-Top Optical Interleaver," Progress In Electromagnetics Research B, Vol. 19, 263-283, 2010.


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