A Kind of Low Loss Birefringent Photonic Crystal Fibre with Increasing-Diameter Air-Holes  

作　　者：李曙光 刘晓东 周桂耀 侯蓝田 

机构地区：[1]Institute of Infrared Optical Fibres and Sensors, College of Science, Yanshan University, Qinhuangdao 066004 [2]Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 [3]Institute of Optoelectronic Technology, Dalian Nationalities University, Dalian 116600

出　　处：《Chinese Physics Letters》2005年第11期2855-2857,共3页中国物理快报（英文版）

摘　　要：We report the results of our investigation on the loss property of a birefringent photonic crystal fibre （PCF） based on a particular periodic arrangement of air-holes and pure silica. The structure of the birefringent PCF, whose air-hole diameter in one ring is always larger than the next inner ring, presents an obviously low confinement loss than the one whose air-hole （except those on the horizontal line） diameter is constant. It is shown from numerical results that a four-ring PCF with birefringenee B=5×10^-4 and fast axis confinement loss of 4.5×10^-3 dB/km at wavelength of 1.55μm can be designed.We report the results of our investigation on the loss property of a birefringent photonic crystal fibre （PCF） based on a particular periodic arrangement of air-holes and pure silica. The structure of the birefringent PCF, whose air-hole diameter in one ring is always larger than the next inner ring, presents an obviously low confinement loss than the one whose air-hole （except those on the horizontal line） diameter is constant. It is shown from numerical results that a four-ring PCF with birefringenee B=5×10^-4 and fast axis confinement loss of 4.5×10^-3 dB/km at wavelength of 1.55μm can be designed.

关 键 词：MICROSTRUCTURED OPTICAL FIBERS FEMTOSECOND LASER-PULSES SUPERCONTINUUMGENERATION MULTIPOLE METHOD BANDGAP FIBER DISPERSION PROPERTY MODE 

分 类 号：O734[理学—晶体学]