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Several liquid crystal dyes and fluorinated compounds with high birefringence are synthesized and their properties evaluated. These polar compounds are useful dopants for enhancing the dielectric anisotropy of the dialkyl diphenyl-diacetylene host.

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We experimentally demonstrate a residual chromatic dispersion monitoring scheme using half-bit delay interferometer with enhanced resolution of 15 (ps/nm)/dB around zero dispersion region in 10-Gb/s RZ-OOK systems, which is more suitable for adaptive dispersion post-compensation.