Highly Birefringent Index-Guiding Photonic Crystal Fiber with Squeezed Differently Sized Air-Holes in Cladding

被引:55
|
作者
Sun, Yuh-Sien [1 ]
Chau, Yuan-Fong [1 ]
Yeh, Han-Hsuan [1 ]
Tsai, Din Ping [2 ,3 ]
机构
[1] Ching Yun Univ, Dept Elect Engn, Jung Li 320, Taiwan
[2] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan
[3] Natl Taiwan Univ, Ctr Nanostorage Res, Taipei 106, Taiwan
关键词
birefringence; photonic crystal fibers; finite-element method;
D O I
10.1143/JJAP.47.3755
中图分类号
O59 [应用物理学];
学科分类号
摘要
We propose a novel high-birefringence index-guiding photonic crystal fiber (PCF). This PCF is composed of a solid silica core and a cladding with two differently sized squeezed elliptical air-holes. The mode birefringence of a fundamental mode in such PCFs is analyzed numerically by the finite-element method. Numerical results reveal that an extraordinarily high modal birefringence at the excitation wavelength of lambda = 1550 nm, 2.6 x 10(-2), is acquired. The contributions of the cladding with two different sizes of air-hole ellipticity, the center-to-center distance between the air-holes, and the the number of cladding rings as well as the confinement loss to the birefringence are systematically evaluated. The evolution of birefringence with the structural variations shows that our highly birefringent fiber can be designed in a controlled manner. [DOI: 10.1143/JJAP.47.3755]
引用
收藏
页码:3755 / 3759
页数:5
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