Design of a photonic crystal fiber with low confinement loss and high birefringence

Q3 Engineering

光电工程 Pub Date : 2021-03-22 DOI:10.12086/OEE.2021.200368

Z. Lijuan, Liang Ruoyu, Zhao Haiying, Xu Zhiniu

引用次数: 0

Abstract

A photonic crystal fiber (PCF) for long distance communication was proposed in this paper. The circular and elliptical air holes distribute in the cladding, and there are two small elliptical air holes around the core in cross section of the PCF. The characteristics of the PCF were analyzed by using the finite element method (FEM) sys-tematically. The results show that the PCF offers an ultrahigh birefringence of 3.51×10-2 and the confinement loss as low as 1.5×10-9 dB/m with the optimal structure at the wavelength of 1550 nm. Compared with the existing photonic crystal fibers with elliptical air holes, the birefringence has a large increase, and the confinement loss reduces by 5 orders of magnitude. Additionally, we also analyzed the relationship between the dispersion of the PCF and the wavelength, and obtained the Brillouin gain spectrum characteristics. In general, the PCF can be used in long distance communication system.

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低约束损耗、高双折射光子晶体光纤的设计

提出了一种用于远距离通信的光子晶体光纤(PCF)。包层中分布着圆形和椭圆形的气孔，在PCF的横截面上，在堆芯周围有两个小的椭圆形气孔。采用有限元方法系统地分析了PCF的特性。结果表明，在1550 nm波长处，PCF具有超高双折射率3.51×10-2，约束损耗低至1.5×10-9 dB/m。与现有的椭圆气孔光子晶体光纤相比，双折射率有较大提高，约束损耗降低了5个数量级。此外，我们还分析了PCF色散与波长的关系，得到了其布里渊增益谱特性。一般来说，PCF可以用于长途通信系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

光电工程 Engineering-Electrical and Electronic Engineering

CiteScore

2.00

自引率

0.00%

发文量

6622

期刊介绍： Founded in 1974, Opto-Electronic Engineering is an academic journal under the supervision of the Chinese Academy of Sciences and co-sponsored by the Institute of Optoelectronic Technology of the Chinese Academy of Sciences (IOTC) and the Optical Society of China (OSC). It is a core journal in Chinese and a core journal in Chinese science and technology, and it is included in domestic and international databases, such as Scopus, CA, CSCD, CNKI, and Wanfang. Opto-Electronic Engineering is a peer-reviewed journal with subject areas including not only the basic disciplines of optics and electricity, but also engineering research and engineering applications. Optoelectronic Engineering mainly publishes scientific research progress, original results and reviews in the field of optoelectronics, and publishes related topics for hot issues and frontier subjects. The main directions of the journal include: - Optical design and optical engineering - Photovoltaic technology and applications - Lasers, optical fibres and communications - Optical materials and photonic devices - Optical Signal Processing