微纳光纤的精细化制备与应用研究

Refined Preparation of and Application Research on Micro-nano Optical Fibers

本文通过在光纤拉锥系统熔融拉锥的过程中设置时间分段,精准控制每个时间分段下氢气流量、氧气流量、火头来回扫描速度以及光纤平台的拉伸速度等参数,对普通单模光纤的整个拉锥过程精细化控制,制备出直径小、腰部平缓区长、传输损耗低的微纳光纤.在排除人为因素的情况下,微纳光纤的成品率可达95%以上.以此光纤制作的微纳光纤环形谐振腔,其自由光谱范围约0.324 nm、半高峰宽约0.07995 nm、Q值约20338、消光比9.6 dB,是品质优良的高灵敏度的微纳光纤传感器件.

In this paper,by setting the time segment in the process of melting taper of the fiber taper system,we can precisely control parameters such as hydrogen flow,oxygen flow,the speed of fire head scanning,and the drawing speed of optical fiber platform in each time segment.The entire tapering process of common single-mode optical fiber is refined,and the micro-nano optical fiber with a small diameter,long waist,and low transmission loss can be prepared.The yield of micro-nano fiber can reach more than 95%without human factors.The micro-nano fiber ring resonator fabricated with such micro-nano fiber has a free spectral range of 0.324 nm,a full width at half maxim of 0.07995 nm,a Q value of 20338,and an extinction ratio of 9.6 dB.It is a micro-nano fiber sensor with good quality and high sensitivity.