A unique approach in ultra-flattened dispersion photonic crystal fibers containing elliptical air-holes |
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Authors: | Nguyen Hoang Hai Yoshinori Namihira Shubi F Kaijage Tatsuya Kinjo Feroza Begum S M Abdur Razzak Nianyu Zou |
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Institution: | (1) Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan |
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Abstract: | In this paper, we report that it is possible to control chromatic dispersion of index guiding PCFs in wide wavelength range
by arranging the major axis of the first inner ring perpendicular to that of the second inner ring. Using this unique arrangement,
a newly PCF with ultra-low and ultra-flattened dispersion is designed through a finite difference method with anisotropic
perfectly matched layers absorbing boundary condition. As an example, we have design a unique PCF with flattened dispersion
of ±0.23 ps/(nm·km) from 1.5 to 1.8 μm wavelength and confinement losses of less than 10−13 dB/m in the wavelength range shorter than 1.8 μm. |
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Keywords: | fiber characterization flattened chromatic dispersion confinement loss |
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