微纳光纤技术:近期研究进展  

Recent Progress in Optical Micro/Nanofiber Technology

作　　者：童利民[1] Tong Limin(State Key Laboratory of Modern Optical Instrumentation,College of Optical Science and Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China)

机构地区：[1]浙江大学光电科学与工程学院现代光学仪器国家重点实验室,浙江杭州310027

出　　处：《光学学报》2022年第17期100-112,共13页Acta Optica Sinica

基　　金：国家重点研发计划(2018YFB2200400);国家自然科学基金重大科研仪器研制项目(11527901);中央高校基本科研业务费资助。

摘　　要：微纳光纤是一种直径接近或小于传输光真空波长的一维自由导波结构,通常由加热玻璃光纤在高温下通过物理拉伸方法制备。典型的微纳光纤具有表面光滑、直径均匀、力学性能优良、强光场约束、强倏逝场、表面场增强及直径/波长依赖的大波导色散等特性,而且光传输损耗远低于同等直径/线宽的所有其他形式的微纳光波导,在光学近场耦合、传感、原子光学、非线性光学及光纤激光技术、光力操控等领域具有良好的应用前景。本文基于微纳光纤的基本传输特性,介绍近年来本研究组在微纳光纤的精确制备、近场耦合、传感与非线性器件等方面的主要研究进展,同时简要提及国内外其他研究组同期相关工作,最后对该方向的研究进行简要总结与展望。Optical micro/nanofibers are one-dimensional free-standing waveguiding structures with diameters close to or smaller than the vacuum wavelength of the guided light.Fabricated by physically drawing glass fiber at high temperature,these fibers show excellent surface smoothness and diameter uniformity,high mechanical strength,tight optical confinement,strong evanescent field,evident surface field enhancement,and large wavelength/diameter-dependent waveguide dispersion,especially much lower waveguiding loss than all other micro/nanowaveguides with similar geometries.These merits offer them great potentials in applications ranging from near-field optical coupling,optical sensing,atom optics,nonlinear optics,laser technology,and optomechanics.In this review,starting from the basic waveguiding properties of optical micro/nanofibers,we introduce our recent progress in high-precision fiber fabrication and micro/nanofiber-based near-field coupling,optical sensors,and nonlinear optical devices.At same time,we also mention relative works from other groups.Finally,we conclude this article with a brief outlook.

关 键 词：光纤光学 微纳光纤 精确制备 近场耦合 传感器 光调制器 光纤激光器 

分 类 号：TN253[电子电信—物理电子学]