Highly Birefringent Bragg Fiber with a Fiber Core of 2-dimension Elliptical-hole Photonic Crystal Structure
A novel highly birefringent Bragg fiber with a fier core of 2-dimension (2D) elliptical-hole photonic crystal structure is proposed. Elliptical air holes are introduced into the fiber core to form a normal 2D photonic crystal structure with a hole pitch (center-to-center distance between the air holes) much smaller that the operation wavelength of the Bragg fiber. The elliptical-hole photonic crystal structure acts as an anisotropic medium with different effective indices for transmission light of differently polarization, which inevitably results to high birefringence (up to the order of magnitude of 0.01) of the Bragg fiber. The proposed Bragg fiber possesses different band-gaps for differently polarized mode. Besides the periodic alternating layers of high/low refractive indices, the bandwidth of the band-gap is also dependent on the effective index of the fiber core, which can be controlled by the area of the elliptical air holes.
Jin-Jei Wu Tzong-Jer Yang Kun-Lin Liao Daru Chen Linfang Shen
Department of Electrical Engineering,Chung Hua University Hsinchu 30012,Taiwan,R.O.C. Center for Optical and Electromagnetic Research,Zhejiang University Hangzhou 310058,China Department of Information Science and Electronic Engineering,Zhejiang University Hangzhou 310058,Chi
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
185-188
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）