长距离空芯反谐振微结构光纤的制备研究  

Study on preparation of long-distance hollow coreanti-resonant microstructured fibers

作　　者：郭娜 朱维震 张慧嘉[1] 杨鹏[1] 庞璐[1] 宁鼎[1] GUO Na;ZHU Wei-zheng;ZHANG Hui-jia;YANG Peng;PANG Lu;NING Ding(The 46th Research Institute of CETC,Tianjing 300220,China)

机构地区：[1]中国电子科技集团公司第四十六研究所,天津300220

出　　处：《激光与红外》2023年第4期585-588,共4页Laser & Infrared

摘　　要：石英基空芯反谐振微结构光纤具有结构简单,高激光损伤阈值,带宽宽等显著优点。目前制备工艺是限制该光纤发展和应用的主要原因之一。常见报道中该种光纤的制备长度仅有几百米,为了提高制备效率,降低制备成本,增加单次制备长度,必须提高预制棒的尺寸,而较大尺寸的预制棒在制备和拉制时,对压力分区系统的制作和可靠性提出挑战。本文针对空芯反谐振微结构光纤的长距离制备工艺进行探索性研究,创新性提出全石英分区控压方式并进行低温拉制实验,采用一次拉制工艺成功实现单次制备长度为1.05 km的光纤,在波长3.5~5μm,实现损耗约10 dB/m。Quartz-based hollow core anti-resonance microstructured fiber has significant advantages of simple structure,high laser damage threshold and wide bandwidth.At present,the preparation process is one of the main reasons limiting the development and application of the optical fiber.The commonly reported preparation lengths for this type of optical fiber are only a few hundred meters.In order to improve the preparation efficiency,reduce the preparation costs and increase the length of a s single preparation,the size of the preform must be increased.And the larger sizes of the preform pose a challenge to the fabrication and reliability of the pressure zoning system when prepared and drawn.In this paper,an exploratory study on the long-distance preparation process of hollow core anti-resonant microstructured fiber is explored,an innovative all-quartz partition pressure control method is put forward,and low-temperature drawing experiments are conducted.The single drawing process is used to successfully prepare the optical fiber with a single length of 1.05 km with a loss of about 10 dB/m at wavelength of 3.5~5μm.

关 键 词：空芯反谐振光纤 中红外 分区控压 一次拉制工艺 

分 类 号：TN929.1[电子电信—通信与信息系统]