Design of Highly Birefringent Holey Fibers with Near-Zero Ultra-flattened Chromatic Dispersion and Ultralow Confinement Loss

M. Samiul Habib, M. Selim Habib, S. M. A. Razzak, M. A. Goffar Khan, Y. Namihira, M. A. Hossain


We present a holey fiber (HF) with elliptical air-holes located in the center core area that ensures high birefringence, near-zero ultra-flattened chromatic dispersion and very low confinement losses in a wide wavelength range. The finite element method with perfectly matched boundary layer is used to investigate the guiding properties. It is demonstrated that it is possible to design a low-loss dispersion-flattened HF with a high birefringence of 0.0033 at a 1.55 μm wavelength. According to simulation, near-zero ultra-flattened dispersion of 0 ± 0.5 ps/nm/km is obtained in a 1.25 to 1.65 μm wavelength range with low confinement losses of 0.0008 dB/km in the entire band of interest.

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