宽带单模空芯反谐振光纤结构设计及虚拟制备研究  

Structural Design and Virtual Preparation of Broadband Single-mode Hollow Core Anti-resonant Optical Fiber

作　　者：郝玉婷 盛新志[1] 丁进敏 娄淑琴[3] HAO Yuting;SHENG Xinzhi;DING Jinmin;LOU Shuqin(Institute of Optical Information Science and Technology,Beijing Jiaotong University,Beijing,China;School of Physical Science and Engineering,Beijing Jiaotong University,Beijing,China;School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing,China)

机构地区：[1]北京交通大学光信息科学与技术研究所,北京 [2]北京交通大学物理科学与工程学院,北京 [3]北京交通大学电子信息工程学院,北京

出　　处：《光电技术应用》2024年第5期39-47,共9页Electro-Optic Technology Application

摘　　要：从制备可行性出发,在六管嵌套空芯反谐振光纤(hollow-core anti-resonant fiber,HC-ARF)包层管外添加连接管,提出一种单模、宽带且弯曲特性好的新型HC-ARF,并基于所构建的虚拟制备模型完成制备。在对六管嵌套HC-ARF包层结构改进的基础上,建立起虚拟制备模型,完成制备工艺的优化探索,并讨论制备工艺参数的控制偏差对成纤工作特性的影响。所制光纤在1.40~1.65μm波长范围250 nm带宽内高阶模抑制比(high-order mode extinction ratio,HOMER)大于100,可保持单模传输,总损耗小于0.2 dB/km。最小损耗0.01 dB/km在1.50μm波长处且HOMER高达2626,弯曲半径不小于10 cm条件下损耗低于0.4 d B/km。制备分析结果表明,所提出的HC-ARF具有良好的宽带单模工作特性,并对制备工艺参数影响具有很好的鲁棒性。研究结果对于HC-ARF结构创新设计及制备技术发展,均具有重要的借鉴意义。A new type of hollow-core anti-resonant fiber(HC-ARF)with single-mode,broadband and good bending characteristics is proposed for the fabrication feasibility by adding a connecting tube outside the cladding tube of six-tube nested HC-ARF,and the fabrication is completed based on the constructed virtual preparation model.The virtual fabrication model is established on the improved six-tube nested HC-ARF to complete the optimization exploration of the fabrication process and the influence of the control deviation of the fabrication process parameters on the operation characteristics of the fiber is discussed.The fabricated fiber has shown a high-order mode extinction ratio(HOMER)of more than 100 at a wavelength range of 1.40~1.65μm with a bandwidth of 250 nm,which can maintain single-mode transmission with a total loss of less than 0.2 dB/km,the minimum loss of 0.01 dB/km is at a wavelength of 1.50μm and the most HOMER is as high as 2626,the bending loss is less than 0.4 dB/km at a radius of no less than 10 cm.Fabrication analysis results show that the proposed HC-ARF has good broadband single-mode operation characteristics and robustness to the effects of the fabrication process parameters.The results are of great significance for the innovative design of HC-ARF structure and the development of fabrication technology.

关 键 词：空芯反谐振光纤 单模特性 宽带传输 光纤制备 光纤预制棒 

分 类 号：TN253[电子电信—物理电子学]