物理学报2012，Vol.61Issue(24)：281-286,6.
空芯光子晶体光纤表面模损耗控制的研究
The surface modes loss control of hollow-core photonic crystal fibers
摘要
Abstract
In this paper, the influences of fiber core structure on photonic band gap and transmission loss for hollow-core photonic crystal fiber are investigated, and the proper fiber core structure of fiber preparation technology is obtained. First, the band gap structure of triangular lattice of hollow core photonic crystal fiber with a fixed duty ratio is calculated by using plane wave expansion method. When the transmission wavelength λ=1.55μm, the structural parameters of the optical fiber are figured out. The value range of the core diameter is given by simulating the influences of core diameter on the band gap location and size, and the value of core wall thickness is obtained through analyzing the leak loss characteristics. Then the fiber end view drawing is designed according to the analytical results. The mode field distributions are simulated by the full-vectorial finite element method under different core diameters. Through the contrast analysis the best fiber core radius with R = 1.6 A--1.75 A is obtained. The results indicate that choosing appropriate core structure not only can meet the photonic band gap and loss characteristics of hollow-core photonic crystal fiber, but also can properly reduce the difficulty in the preparation technology of fiber.关键词
纤芯结构/空芯光子晶体光纤/光子带隙/传输损耗Key words
core structure/hollow-core photonic crystal fiber/photonic band gap/transmission loss分类
信息技术与安全科学引用本文复制引用
程胜飞,彭景刚,李进延,程兰,蒋作文,李海清,戴能利,姜发刚,杨晓波..空芯光子晶体光纤表面模损耗控制的研究[J].物理学报,2012,61(24):281-286,6.基金项目
国家自然科学基金（批准号：81100701）资助的课题. （）
