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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2010-06-03
A Comparative Study of High Birefringence and Low Confinement Loss Photonic Crystal Fiber Employing Elliptical Air Holes in Fiber Cladding with Tetragonal Lattice
By
Yuan-Fong Chau,

    Prof. Yuan-Fong Chau

    Department of Electronic Engineering

    Ching Yun University

    Taiwan

    Homepage

Chi-Yu Liu,

    Dr. Chi-Yu Liu

    Department of Electronic Engineering

    Ching Yun University

    Taiwan

    Homepage

Han-Hsuan Yeh,

    Dr. Han-Hsuan Yeh

    Department of Electronic Engineering

    Ching Yun University

    Taiwan

    Homepage

Din Ping Tsai

    Prof. Din Ping Tsai

    Department of Physics, Center of Nanostorage Research

    National Taiwan University

    Taiwan, R.O.C.

    Homepage

Progress In Electromagnetics Research B, Vol. 22, 39-52, 2010
doi:10.2528/PIERB10042405 | Google Scholar

Abstract
We numerically compare the mode birefringence and confinement loss with four patterns of index-guiding photonic crystal fibers (PCF) using the finite element method. These PCFs are composed of a solid silica core surrounded by different sizes of elliptical air holes and a cladding which consist of the same elliptical air holes in fiber cladding with tetragonal lattice. The maximal modal birefringence and lowest confinement loss of our proposed case A structure at the excitation wavelength of λ=1550 nm can be achieved at a magnitude of 5.3×10-2 (which is the highest value to our knowledge) and less than 0.051 dB/km (an acceptable value less than 0.1 dB/km) with only four rings of air holes in fiber cladding, respectively. The merit of our designed PCFs is that the birefringence and confinement loss can be easily controlled by turning the pitch (hole to hole spacing) of elliptical air holes in PCF cladding.
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Citation
Yuan-Fong Chau, Chi-Yu Liu, Han-Hsuan Yeh, and Din Ping Tsai, "A Comparative Study of High Birefringence and Low Confinement Loss Photonic Crystal Fiber Employing Elliptical Air Holes in Fiber Cladding with Tetragonal Lattice," Progress In Electromagnetics Research B, Vol. 22, 39-52, 2010.
doi:10.2528/PIERB10042405
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