Sensitivity enhancement around the dispersion turning point in helical-core fibers

Yanyan Zhi; Hao Chen; Yuting He; Lanlan Wang; Jie Li; Hao Liang; Chuang Wu; Bai-Ou Guan

doi:10.1117/12.3009076

29 November 2023 Sensitivity enhancement around the dispersion turning point in helical-core fibers

Yanyan Zhi, Hao Chen, Yuting He, Lanlan Wang, Jie Li, Hao Liang, Chuang Wu, Bai-Ou Guan

Proceedings Volume 12771, Advanced Sensor Systems and Applications XIII; 1277121 (2023) https://doi.org/10.1117/12.3009076
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

Helical-core fibers have been widely utilized for various applications such as orbital angular momentum manipulation, optical filtering, and sensing. In this work, we demonstrate the sensitivity enhancement of a helical-core fiber by tailoring the resonance wavelength towards the dispersion turning point (DTP) utilizing a post chemical etching process. When the sensor works at different dispersion points, the responses of the device on external parameters, including mechanical torsion, temperature, strain, and external refractive index are investigated and compared. Tailoring the resonance wavelength of the helical-core fiber towards the dispersion turning point in the post chemical etching process significantly enhances the sensitivity to various kinds of parameters, which provides an avenue for modifying and optimizing performances of optical devices.

Citation Download Citation

Yanyan Zhi, Hao Chen, Yuting He, Lanlan Wang, Jie Li, Hao Liang, Chuang Wu, and Bai-Ou Guan "Sensitivity enhancement around the dispersion turning point in helical-core fibers", Proc. SPIE 12771, Advanced Sensor Systems and Applications XIII, 1277121 (29 November 2023); https://doi.org/10.1117/12.3009076

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