Dispersion-Flattened Modified Hexagonal Photonic Crystal Fibers with Low Confinement Loss |
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| Authors: | S M Abdur Razzak Yoshinori Namihira Feroza Begum Kazuya Miyagi Shubi Kaijage Nguyen Hoang Hai Tatsuya Kinjo Nianyu Zou |
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| Institution: | (1) Graduate School of Engineering and Science, University of the Ryukyus, I Senbaru, Nishihara Okinawa, 903-0213, Japan |
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| Abstract: | This paper presents dispersion-flattened modified hexagonal photonic crystal fibers (MH-PCFs) with extremely low confinement
loss. The finite difference method (FDM) with an anisotropic perfectly matched boundary layer (PML) is used to investigate
the chromatic dispersion and confinement properties. It is demonstrated that it is possible to obtain an ultra-flattened dispersion
of 0 ± 0:41 ps/(nm·km) in the wavelength range of 1.35–1.65 mm and an extremely low confinement loss of less than 10−4 dB/km from a four-ring MH-PCF. Effective single-mode operation of the MH-PCF is confirmed for the entire band of interest. |
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| Keywords: | photonic crystal fiber chromatic dispersion confinement loss effective area |
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