Theoretical Research on the Strain Characteristics of the Selective-Filling Birefringent Photonic Crystal Fiber

  • Jin Zuo
  • Tingting HanEmail author
  • Jingping Yang
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 517)


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.


Photonic crystal fiber Birefringent fiber Selective-filling Strain sensor 



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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© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission, College of Electronic and Communication EngineeringTianjin Normal UniversityTianjinChina

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