We present a novel method for engineering ultra-flattened-dispersion photonic crystal fibers with uniform air holes by rotations of inner air-hole rings around the fiber core.By choosing suitable rotation angles of ea...We present a novel method for engineering ultra-flattened-dispersion photonic crystal fibers with uniform air holes by rotations of inner air-hole rings around the fiber core.By choosing suitable rotation angles of each inner ring,theoretical results show that normal,anomalous,and nearly zero ultra-flattened-dispersion fibers in wide spectra ranges of interest can be obtained alternatively.Moreover,in our dispersion sensitive analysis,these types of fibers are robust to variations from optimal design parameters.The method is suitable for the accurate adjustment of fiber dispersion within a small range,which would be valuable for the fabrication of ultra-flattened-dispersion fibers and also have potential applications in wide-band high-speed optical communication systems.展开更多
基金This work is supported by the National Natural Science Foundation of China under grant nos.11147014,61002013,and 11074082the Natural Science Foundation of Hubei Province under grant no.2013CFA052also partly by the open fund of Hubei Key Laboratory of Intelligent Wireless Communications under grant no.IWC2012009.
文摘We present a novel method for engineering ultra-flattened-dispersion photonic crystal fibers with uniform air holes by rotations of inner air-hole rings around the fiber core.By choosing suitable rotation angles of each inner ring,theoretical results show that normal,anomalous,and nearly zero ultra-flattened-dispersion fibers in wide spectra ranges of interest can be obtained alternatively.Moreover,in our dispersion sensitive analysis,these types of fibers are robust to variations from optimal design parameters.The method is suitable for the accurate adjustment of fiber dispersion within a small range,which would be valuable for the fabrication of ultra-flattened-dispersion fibers and also have potential applications in wide-band high-speed optical communication systems.
