{"title":"Strain sensing based on modal interference spectrum in polarization-maintaining fiber","authors":"Tomohiro Shiozaki, Ariasu Tamura, Yosuke Mizuno","doi":"10.35848/1347-4065/ad6f84","DOIUrl":null,"url":null,"abstract":"We investigate a simple structure in which a polarization-maintaining fiber (PMF) is sandwiched between two single-mode fibers (SMFs). By injecting broadband light and observing the modal interference spectrum of the transmitted light in the 870 nm range, we identify a clear shift dependent on the strain applied to the PMF. In addition, we demonstrate that in the same wavelength range, the strain applied to the SMFs before and after the PMF does not influence the interference spectrum. This result confirms that only the PMF segment exhibits strain sensitivity.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"23 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Journal of Applied Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.35848/1347-4065/ad6f84","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
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Abstract
We investigate a simple structure in which a polarization-maintaining fiber (PMF) is sandwiched between two single-mode fibers (SMFs). By injecting broadband light and observing the modal interference spectrum of the transmitted light in the 870 nm range, we identify a clear shift dependent on the strain applied to the PMF. In addition, we demonstrate that in the same wavelength range, the strain applied to the SMFs before and after the PMF does not influence the interference spectrum. This result confirms that only the PMF segment exhibits strain sensitivity.
期刊介绍：
The Japanese Journal of Applied Physics (JJAP) is an international journal for the advancement and dissemination of knowledge in all fields of applied physics. JJAP is a sister journal of the Applied Physics Express (APEX) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).
JJAP publishes articles that significantly contribute to the advancements in the applications of physical principles as well as in the understanding of physics in view of particular applications in mind. Subjects covered by JJAP include the following fields:
• Semiconductors, dielectrics, and organic materials
• Photonics, quantum electronics, optics, and spectroscopy
• Spintronics, superconductivity, and strongly correlated materials
• Device physics including quantum information processing
• Physics-based circuits and systems
• Nanoscale science and technology
• Crystal growth, surfaces, interfaces, thin films, and bulk materials
• Plasmas, applied atomic and molecular physics, and applied nuclear physics
• Device processing, fabrication and measurement technologies, and instrumentation
• Cross-disciplinary areas such as bioelectronics/photonics, biosensing, environmental/energy technologies, and MEMS
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