Title :
Design of Wideband Single-Polarization Single-Mode Photonic Crystal Fiber
Author :
Zhang, Fangdi ; Zhang, Min ; Liu, Xiaoyi ; Ye, Peida
Author_Institution :
Beijing Univ. of Posts & Telecommun.
fDate :
5/1/2007 12:00:00 AM
Abstract :
The present paper proposes a novel design for achieving single-polarization single-mode (SPSM) operation in photonic crystal fiber (PCF), using a rectangular-lattice PCF with two lines of three central air holes enlarged. The proposed PCF that is composed entirely of silica material is modeled by a full-vector finite element method with anisotropic perfectly matched layers. The position of the region of single polarization can be tuned freely by adjusting the size of the central enlarged air holes. Using this structure, an SPSM PCF with confinement loss less than 0.1 dB/km within the wavelength range from 1.20 to 1.66 mum and effective mode area about 5.9 mum2 at 1.55 mum has been successfully designed. The proposed fiber is a nonlinear SPSM, which may be useful for nonlinear optical applications or applications with a wide SPSM operating bandwidth requirement
Keywords :
finite element analysis; nonlinear optics; optical fibre losses; optical fibre polarisation; photonic crystals; silicon compounds; 1.20 to 1.66 mum; SiO2; anisotropic layers; confinement loss; full-vector finite element method; nonlinear optical applications; perfectly matched layers; rectangular-lattice photonic crystal fiber; silica material; single-mode photonic crystal fiber; single-polarization photonic crystal fiber; wideband photonic crystal fiber; Anisotropic magnetoresistance; Central air conditioning; Crystalline materials; Finite element methods; Optical losses; Perfectly matched layers; Photonic crystal fibers; Polarization; Silicon compounds; Wideband; Confinement loss; finite-element method (FEM); photonic crystal fiber (PCF); single-polarization single-mode (SPSM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.893031
