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	Mode Dependence of Refractive Index Sensitivity of Long-Period Fiber Gratings Induced by Periodically Embedded Multimode Fiber
	J. Wang, A. Wang, J. Hao, X. Zeng, X. Yang, J. Zhou, H. Meng, T. Geng and W. Sun
	2023
发表期刊	IEEE Sensors Journal
ISSN	1530437X
卷号	23期号:10页码:10452-10459
摘要	In this article, we present and verify the mode dependence of refractive index (RI) sensitivity of long-period fiber grating induced by periodically embedded multimode fiber (PEM-LPFG). The PEM-LPFG is first fabricated by periodically embedding multimode fiber (MMF) into the single mode fiber (SMF). The resonant mode is translated by reducing the cladding. Numerical simulations based on beam propagation method (BPM) are applied to calculate the transmission spectrum, mode distribution, and RI sensitivities of the PEM-LPFG. The cladding diameter after etching is determined to be 89 and 68m, which corresponds to the mode translated from LP012 to LP07 and LP05, respectively. The experimental results indicate that the maximum RI sensitivity of 1322.26 nm/RIU in the range of 1.333-1.437 RIU is achieved when the resonant mode is LP07, which is four times as large as the original one (325.58 nm/RIU @ LP012 mode). PEM-LPFG working at LP05 mode exhibits a lower sensitivity of 844.72 nm/RIU. All of the experimental results are in good agreement with the simulation. The RI sensitivity optimization of PEM-LPFG is able to realize by mode converting. Furthermore, the temperature responses are measured to be 13 pm/°C and 4 pm/°C. This work provides a theoretical reference and experimental evidence for the dependence of the PEM-LPFG RI sensitivity on the resonant mode for the first time. © 2001-2012 IEEE.
DOI	10.1109/JSEN.2023.3263733
URL	查看原文
收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67937
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Wang, A. Wang, J. Hao, X. Zeng, X. Yang, J. Zhou, H. Meng, T. Geng and W. Sun. Mode Dependence of Refractive Index Sensitivity of Long-Period Fiber Gratings Induced by Periodically Embedded Multimode Fiber[J]. IEEE Sensors Journal,2023,23(10):10452-10459.
APA	J. Wang, A. Wang, J. Hao, X. Zeng, X. Yang, J. Zhou, H. Meng, T. Geng and W. Sun.(2023).Mode Dependence of Refractive Index Sensitivity of Long-Period Fiber Gratings Induced by Periodically Embedded Multimode Fiber.IEEE Sensors Journal,23(10),10452-10459.
MLA	J. Wang, A. Wang, J. Hao, X. Zeng, X. Yang, J. Zhou, H. Meng, T. Geng and W. Sun."Mode Dependence of Refractive Index Sensitivity of Long-Period Fiber Gratings Induced by Periodically Embedded Multimode Fiber".IEEE Sensors Journal 23.10(2023):10452-10459.

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