Helical long-period grating on multicore fiber for refractive index sensing

Helical long-period grating on multicore fiber for refractive index sensing

2020 IEEE Photonics Conference (IPC)

10.1109/IPC47351.2020.9252446

closed

https://ieeexplore.ieee.org/document/9252446

Li Baocheng, Wong Liang Jie, Shum Perry Ping, Zheng Yu, Zhang Hailiang, Wu Zhifang

fiber optics sensors, microstructured fibers, refractive index

16 November 2020

Li, Baocheng, et al. "Helical long-period grating on multicore fiber for refractive index sensing." 2020 IEEE Photonics Conference (IPC). IEEE.

We have fabricated and experimentally demonstrated a twisted multicore fiber as a compact, low-cost, mechanically strong platform for refractive index sensing. We achieve sensitivities as high as 1077 nm/RIU, and an FSR of about 331 nm, 6 times larger than in conventional sensing techniques.

This work is partially supported by NSFC (11774102), the Funds of Huaqiao University (ZQN-YX504, 17BS412)

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Institute for Infocomm Research