High-Sensitivity Microbend Sensor Based on Light Cones in Coreless Fiber Article Swipe
Junhua Huang
,
Ya Han
,
Lei Chen
,
Zhong Yu
,
Feifan Huang
,
K-Y Chou
,
Linwei Huang
,
Gui‐Shi Liu
,
Yaofei Chen
,
Zhe Chen
,
Yunhan Luo
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1007/s13320-025-0774-0
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1007/s13320-025-0774-0
Eigenmode expansion (EME) is a widely used method for modeling the electromagnetic wave propagation in multimode waveguides, where it breaks down signals into local eigenmodes and calculates them independently. Nevertheless, this methodology may challenge the causality mandated by the theory of special relativity, thus potentially disrupting the cause-and-effect relationship. This study experimentally explored light transmission in the multimode coreless fiber and found discrepancies between the EME method and measurement. To reconcile these inconsistencies, we introduced a light cone model, providing an alternative interpretation guided by the principles of special relativity. Remarkably, this innovative model did not merely resolve the observed discrepancies between the theory and experiments, but also presented a pioneering technique for designing microbend sensors. Through experimentation, we achieved the remarkable sensitivity of 500 dB/m −1 at a bending curvature of 0 m −1 . Our research advances the understanding of multimode systems and paves the way for innovative sensing and communications applications in compact devices.
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- article
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- en
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- https://doi.org/10.1007/s13320-025-0774-0
- https://link.springer.com/content/pdf/10.1007/s13320-025-0774-0.pdf
- OA Status
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- 67
- OpenAlex ID
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https://openalex.org/W4415537477Canonical identifier for this work in OpenAlex
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https://doi.org/10.1007/s13320-025-0774-0Digital Object Identifier
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High-Sensitivity Microbend Sensor Based on Light Cones in Coreless FiberWork title
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articleOpenAlex work type
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enPrimary language
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2025Year of publication
- Publication date
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2025-10-25Full publication date if available
- Authors
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Junhua Huang, Ya Han, Lei Chen, Zhong Yu, Feifan Huang, K-Y Chou, Linwei Huang, Gui‐Shi Liu, Yaofei Chen, Zhe Chen, Yunhan LuoList of authors in order
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https://doi.org/10.1007/s13320-025-0774-0Publisher landing page
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https://link.springer.com/content/pdf/10.1007/s13320-025-0774-0.pdfDirect link to full text PDF
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https://link.springer.com/content/pdf/10.1007/s13320-025-0774-0.pdfDirect OA link when available
- Cited by
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0Total citation count in OpenAlex
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67Number of works referenced by this work
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