干涉测量
光学
流离失所(心理学)
物理
光纤传感器
光纤
角动量
天文干涉仪
纤维
材料科学
心理学
量子力学
复合材料
心理治疗师
作者
Hua Zhao,Chenji Guo,jiayang xu,Huali Lu,Hui Hao,Hongpu Li
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-09-18
卷期号:48 (20): 5209-5209
摘要
In this study, a probe-type all-fiber tiny-displacement sensor is proposed and experimentally demonstrated, which is realized by using an all-fiber orbital-angular-momentum (OAM) interferometer, where a probe is especially adopted and inserted into the testing arm of the OAM interferometer. The proposed device takes full advantages of the OAM interferometer and the probe-type fiber sensor, making it completely available to the tiny-displacement measurement. As a result, changes in displacement (ranging from 0 nm to 750 nm) with a real resolution of ∼8.81 nm have been successfully measured. To our knowledge, this is the first demonstration of an all-fiber probe-type OAM interferometer, which may find potential application to high-precision tiny displacement in a small confined space.
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