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“High-Speed Liquid Crystal Fiber Fabry-Perot Tunable Filter”, by Ufei Bao et al, appearing in IEEE Photonics Technology Letters, vol. 8, No. 9, Sep. 1996, pp. 1190-1192. |
“Tunable Polymer Optical Add/Drop Filter For Multiwavelength Networks”, by C. Kostrzewa et al, appearing in IEEE Photonics Technology Letters, vol. 9, No. 11, Nov. 1997, pp. 1487-1489. |