volume | PIER Journals

Abstract

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.

1. Alboon, S. A. and R. G. Lindquist, "Flat-top liquid crystal tunable filter using coupled Fabry-Perot cavities," Optics Express, Vol. 16, 231-236, 2008. Google Scholar

2. Alboon, S. A. and R. G. Lindquist, "Flat-top/distortionless tunable filters based on liquid crystal multi cavities for DWDM applications," Proceedings of the IEEE Southeastcon 2008, 117-122, Huntsville, AL, 2008. Google Scholar

3. Wei, L. and J. W. Y. Lit, "Design optimization of flattop interleaver and its dispersion compensation," Optics Express, Vol. 15, 6439-6457, 2007. Google Scholar

4. Hsieh, C. H., C. W. Lee, S. Y. Huang, R. Wang, P. Yeh, and W. H. Cheng, "Flat-top and low-dispersion interleavers using Gires-Tournois etalons as phase dispersive mirrors in a Michelson interferometer," Optics Communications, Vol. 237, 285-293, 2004. Google Scholar

5. Wei, L. and J. W. Y. Lit, "Design of periodic bandpass filters based on a multi-reflector Gires-Tournois resonator for DWDM systems," Optics Communications, Vol. 255, 209-217, 2005. Google Scholar

6. Dingel, B. B. and T. Aruga, "Properties of a novel noncascaded type, easy-to-design, ripple-free optical bandpass filter," Journal of Lightwave Technology, Vol. 17, 1461-1469, 1999. Google Scholar

7. Dingel, B. B. and M. Izutsu, "Multifunction optical filter with a Michelson-Gires-Tournois interferometer for wavelength-division-multiplexed network system applications," Optics Letters, Vol. 23, 1099-1101, 1998. Google Scholar

8. Park, H. Y., S. Lee, M.-J. Kim, S.-G. Park, B.-H. O, and E. Lee, "Reduction of an insertion loss in an interleaver with Gires-Tournois etalons by asymmetric input-output port configuration," Microwave and Optical Technology Letters, Vol. 48, 2024-2028, 2006. Google Scholar

9. Hsieh, C.-H., R. Wang, Z. J. Wen, I. McMichael, P. Yeh, C.-W. Lee, and W.-H. Cheng, "Flat-top interleavers using two Gires-Tournois etalons as phase-dispersive mirrors in a michelson interferometer," IEEE Photonics Technology Letters, Vol. 15, 242-244, 2003. Google Scholar

10. Wei, L. and J. W. Y. Lit, "Periodic filters with a three-mirror Gire-Tournois resonator in a Michelson interferometer," Optical Engineering Letters, Vol. 44, 040503, 2005. Google Scholar

11. Dingel, B. B., "Recent development of novel optical interleaver: Performance and potential," Proceedings of SPIE, Vol. 5246, 2003. Google Scholar

12. Cao, S., J. Chen, J. N. Damask, C. R. Doerr, L. Guiziou, G. Harvey, Y. Hibino, H. Li, S. Suzuki, K.-Y. Wu, and P. Xie, "Interleaver technology: Comparisons and applications requirements," Journal of Lightwave Technology, Vol. 22, 281-289, 2004. Google Scholar

13. Zhang, J., L. Liu, Y. Zhou, N. Xu, and L. Wang, "High performance electro-optically tunable birefringent interleaver filters," Proceedings of SPIE, Vol. 5524, 345-353, 2004. Google Scholar

14. Cheng, C.-H. and T. J. Xia, "Novel bandwidth- and center-wavelength-tunable interleaver," Optical Engineering, Vol. 44, 085002, 2005. Google Scholar

15. Zhang, J., L. Liu, Y, and Zhou, "Optimum design of a novel electro-optically tunable birefringent interleaver filter," J. Opt. A: Pure Appl. Opt., Vol. 6, 1052-1057, 2004. Google Scholar

16. Carlsen, W. J. and P. Melman, "Birefringent optical multiplexer with flattened bandpass,", U.S. Patnet 4685773, 1987. Google Scholar

17. Buhrer, C. F., "Optical wavelength multiplexer/demultiplexer and demultiplexer/multiplexer,", U.S. Patent 4987567, 1991. Google Scholar

18. Liang, T. K., H. K. Tsang, C. S. Wong, and C. Shu, "All-optical time-division demultiplexing with polarization-diversity nonlinear loop interferometer," Optics Express, Vol. 11, 2047-2052, 2003. Google Scholar

19. Collings, P. J., Liquid Crystals: Nature's Delicate Phase of Matter, Princeton University Press, 2002.

Dr. Shadi A. Alboon

Dr. Alaeddin Abu-Abed

Dr. Robert Lindquist

Dr. Hussein R. Al-Zoubi