高双折射光子晶体光纤及其特性研究

Investigation on High Birefringence Photonic Crystal Fiber

提出了一种复合结构的光子晶体光纤,采用多极法对其双折射、限制损耗、基模模场以及色散特性进行了数值模拟。研究表明,该光纤在1 550nm处可获得1.56×10-2的双折射,限制损耗为7.31×10-3 dB/km,负色散达-320ps/（nm·km）,且损耗在1 300~1 600nm范围内基本稳定。

A new composite structure photonic cystal fiber（PCF）was proposed.The properties of birefringence,confinement loss,dispersion and mode area of the proposed PCF were simulated by multipole method.Simulation results show that a birefringence of 1.56×10-2 were obtained at the wavelength of 1 550 nm,the confinement lose of 7.31×10-3 dB/km and negative dispersion of-320ps/（nm·km）.And the confinement lose keeps stable at the wavelength range of 1 300~1 600 nm.