Highly Birefringent Elliptical-Hole Photonic Crystal Fibers With Double Defect
Highly Birefringent Elliptical-Hole Photonic Crystal Fibers With Double Defect
复制标题
DOI：
10.1109/jlt.2007.902114
复制
发表时间：
2007-09
影响因子：
4.7
通讯作者：
Daru Chen;Linfang Shen
中科院分区：
文献类型：
--
作者：
Daru Chen;Linfang Shen
从理论上研究了一种新型的具有双缺陷的椭圆孔光子晶体光纤(PCF)，证明了它的高双折射[包括相位折射率双折射(PIB)和群折射率双折射(GIB)]，可以达到10-2个数量级，尤其是具有很高的PIB，在归一化的小频带内GIB可以忽略不计。在可比参数下，这种光子晶体光纤的PIB远高于圆孔双缺陷光子晶体光纤。与具有单一缺陷的椭圆孔光子晶体光纤相比，这种光子晶体光纤具有更高的PIB和中等椭圆度的更大的模式面积的优点，因此更适合于线性应用和制作。在此基础上，提出并实现了一种新型的宽带单极化单模光子晶体光纤。此外，还提出了一种设计宽带SPSM光子晶体光纤的新方法。
A novel elliptical-hole photonic crystal fiber (PCF) with double defect is theoretically investigated, and its high birefringence [including both the phase-index birefringence (PIB) and the group-index birefringence (GIB)] is demonstrated, which can reach an order of 10-2 Such a PCF can especially have a very high PIB, with a negligible GIB in a small band of normalized frequencies. The PIB of this PCF is much higher than that of the circular-hole PCF with double defect, under comparable parameters. Compared with the elliptical-hole PCF with single defect, the present PCF possesses the advantages of both a higher PIB and a larger modal area for modest ellipticities; thus, it is more suitable in linear applications, as well as in fabrication. Moreover, a novel single-polarization single-mode (SPSM) PCF with a broad wavelength band is proposed and demonstrated. In addition, a new approach in designing broadband SPSM PCFs is suggested.