单锥形光纤马赫-曾德尔干涉仪。

Single S-tapered fiber Mach-Zehnder interferometers.

机构信息

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.

出版信息

Opt Lett. 2011 Dec 1;36(23):4482-4. doi: 10.1364/OL.36.004482.

DOI:10.1364/OL.36.004482

PMID:22139216

Abstract

A fiber Mach-Zehnder interferometer (MZI) sensor, novel to our knowledge, based on a single "S"-like fiber taper has been fabricated via applying nonaxial pull in fiber tapering by a fusion splicer. The typical feature size of the structure has a length of 660 μm and the axial offset of 96 μm. This S fiber taper MZI has a refractive index (RI) sensitivity of 1590 nm/refractive index unit in the RI range of 1.409-1.425 and a strain sensitivity of about -60 pm/microstrain, which is 30 times higher than that of the normal two-taper-based MZI sensors.

摘要

一种基于单根“S”型光纤锥的光纤马赫-曾德尔干涉仪（MZI）传感器，据我们所知，这是一种新型传感器，通过熔接机施加非轴向拉力来制作光纤锥。该结构的典型特征尺寸为 660μm 长，96μm 轴向偏移。这种 S 光纤锥 MZI 在折射率范围为 1.409-1.425 时的折射率灵敏度为 1590nm/折射率单位，应变灵敏度约为-60pm/微应变，比普通基于两个光纤锥的 MZI 传感器高 30 倍。