Abstract
In this paper, the detailed strain characteristics of a selective-filling birefringent photonic crystal fiber (SF-PCF) were analyzed theoretically. The SF-PCF was achieved by selectively filling two symmetrical air holes around the fiber core of a PCF with a high index liquid. The group birefringence and phase birefringence presented unique characteristics different from the traditional index-guiding birefringence fiber. Hence, the transmission and sensing characteristics of the Sagnac interferometer based on the SF-PCF presented diversity and high sensitivity. Finally, the highest strain sensitivity of −9.56 pm/με was theoretically achieved.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China under Grant No. 11404240, and by the Doctoral Scientific Foundation of Tianjin Normal University under No. 52XB1307.
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Zuo, J., Han, T., Yang, J. (2020). Theoretical Research on the Strain Characteristics of the Selective-Filling Birefringent Photonic Crystal Fiber. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 517. Springer, Singapore. https://doi.org/10.1007/978-981-13-6508-9_46
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DOI: https://doi.org/10.1007/978-981-13-6508-9_46
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