窄带空芯反谐振光纤的制备及其模式转换应用研究  

Preparation and mode conversion application of narrowband hollow-core anti-resonant fiber

作　　者：杨家濠 张傲岩 夏长明[1] 邓志鹏 刘建涛[1] 黄卓元 康嘉健 曾浩然 蒋仁杰 莫志峰 侯峙云[1] 周桂耀[1] Yang Jia-Hao;Zhang Ao-Yan;Xia Chang-Ming;Deng Zhi-Peng;Liu Jian-Tao;Huang Zhuo-Yuan;Kang Jia-Jian;Zeng Hao-Ran;Jiang Ren-Jie;Mo Zhi-Feng;Hou Zhi-Yun;Zhou Gui-Yao(School of Information Optoelectronics Technology,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学信息光电子科技学院,广州510006

出　　处：《物理学报》2022年第13期207-214,共8页Acta Physica Sinica

基　　金：广东重点领域研发计划(批准号:2018B010114002);国家重点研发计划(批准号:2018YFB0407403)资助的课题。

摘　　要：空芯反谐振光纤由于其优异的光学特性,如低非线性、超低群速度色散、低温度敏感性和高损伤阈值等,使其在大功率激光传输、量子通信、传感、航空航天等多个领域有着潜在的应用,成为未来最具发展潜力的特种光纤.由于空芯反谐振光纤能够将99.9%以上光场限制在光纤的空芯区域中,这也使其成为光纤滤波器、模式转换等领域的重要光子器件.本文针对980 nm单模激光器的迫切需求,研制了一种应用于980 nm多模激光转980 nm单模激光的空芯反谐振光纤,并对其应用进行了实验验证.Owing to the unique characteristics of the hollow core fiber(HCF),more and more researchers pay attention to its application.Because the mode field is mainly limited to the core region of the fiber,which results in low non-linearity,ultra-low group velocity dispersion,low temperature sensitivity,and high material damage threshold.Based on the above,the HCF possesses some attractive nonlinear applications such as in transmission of high-power laser beams,sensing,ultra-wide band low-loss transmission,pulse compression and super-continuum generation.Besides,the HCFs can be further divided into the transmitting band-gap photonic crystal fiber(PBG-PCF)and the hollow-core anti-resonant fiber(HC-ARF).Compared with the PBG-PCF,the latter has wide light guiding characteristics caused by leaking modes.According to the research in the recent year,the HC-ARF has gradually approached to the performance of the PBG-PCF in its transmission loss,showing that it has potential applications in communications,sensing,aerospace,high-power laser transmission and other fields in the future.In addition,the HC-ARF with the special light-guiding properties has also become the important photonic device in the fields of fiber filters,mode conversion,etc.In this paper,a hollow-core anti-resonance fiber is studied and its light transmission performance in the spectral range of 500–1500 nm is verified.The optical loss measured at 980 nm wavelength is about 0.32 dB/m.It is found that a 980 nm multi-mode laser beam can be converted into a single-mode one after transmitting through the hollow core fiber we designed.

关 键 词：光纤光学 反谐振 导光特性 模式转换 

分 类 号：TN253[电子电信—物理电子学]