| Highly sensitive torsion sensor based on Mach–Zehnder interference in helical seven-core fiber taper |
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| 引用本文： | 王佳斌,曾欣喆,周建,郝佳玉,杨星宇,刘跃,陈文焕,李松,严云翔,耿涛,孙伟民,苑立波.Highly sensitive torsion sensor based on Mach–Zehnder interference in helical seven-core fiber taper[J].Chinese Optics Letters,2023(4):42-47. |
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| 作者姓名： | 王佳斌 曾欣喆 周建 郝佳玉 杨星宇 刘跃 陈文焕 李松 严云翔 耿涛 孙伟民 苑立波 |
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| 作者单位： | 1. Key Laboratory of In-fiber Integrated Optics, Ministry of Education, Harbin Engineering University;2. Qingdao Innovation and Development Center of Harbin Engineering University;3. Photonics Research Center, School of Electronic Engineering and Automation, Guilin University of Electronic Technology |
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| 基金项目： | supported in part by the Joint Research Fund in Astronomy under Cooperative Agreement between the National Natural Science Foundation of China (NSFC) and the Chinese Academy of Sciences (CAS) (Nos. U2031132 and U2031130)；;the National Natural Science Foundation of China (No. 12103015)；;the Fundamental Research Funds for the Central Universities to the Harbin Engineering University； |
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| 摘 要： | We propose a high-sensitivity bidirectional torsion sensor using a helical seven-core fiber taper embedded in multimode fiber(MHSTM).Sensors with different taper waists and helical pitches are fabricated,and their transmission spectra are obtained and analyzed.The waist and length of the sandwiched seven-core fiber are finally determined to be 68 μm and3 mm,respectively.The experimental results show that the clockwise and counterclockwise torsion sensitivities of the proposed sensor are 2.253 nm...
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