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RETRACTED ARTICLE: Optical fiber bi-directional strain sensor based on coreless fiber

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This article was retracted on 10 January 2024

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Abstract

An optical fiber bi-directional strain sensor principled on Mach–Zenhder interferometer is fabricated and demonstrated, a sensing segment no-core fiber of 125 μm diameter both ends fused with a couple of single-mode fibers then bi-directionally strained, the achieved sensitivity was around 16.37 pm με−1, the sensor is excellently repeatable with a very good mechanical toughness; to the best of our knowledge, this is the best strain sensitivity reported in no-core fiber strain sensors. The sensor can be employed in a wide variety of opto-mechanical monitoring applications in different industrial facilities.

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Acknowledgements

This work is supported by the ministry of higher education and scientific research and university of Baghdad.

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This study was self- funded.

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Correspondence to Mohammad M. Hasan.

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This article has been retracted. Please see the retraction notice for more detail: https://doi.org/10.1007/s13204-024-03017-2

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Hasan, M.M., Taher, H.J. RETRACTED ARTICLE: Optical fiber bi-directional strain sensor based on coreless fiber. Appl Nanosci 13, 1225–1233 (2023). https://doi.org/10.1007/s13204-021-01983-5

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  • DOI: https://doi.org/10.1007/s13204-021-01983-5

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