Graphene enhanced phase sensitive D-type fiber optic sensor

Yi Xu; L.-K. Ang

doi:10.1117/12.2506500

15 November 2018 Graphene enhanced phase sensitive D-type fiber optic sensor

Yi Xu, L.-K. Ang

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 1096467 (2018) https://doi.org/10.1117/12.2506500
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

A new D-type fiber optic sensor based on silicon/graphene hybrid structure is proposed. The refractive index variations are detected with phase difference changes instead of the conventional intensity and spectral variations. An ultrahigh phase sensitivity of 1:3716×10⁶ deg=RIU (RIU: refractive index unit) was achieved, which is 3447- fold and 380-fold higher than that of fiber optic sensor without silicon/graphene coating, and with only silicon coating, respectively. This phase sensitivity enhancement factor is depending on the incident angle. The phase sensitivity decreases with the incident angle, height of fiber core, while increases with the length of sensing region.

Citation Download Citation

Yi Xu and L.-K. Ang "Graphene enhanced phase sensitive D-type fiber optic sensor", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 1096467 (15 November 2018); https://doi.org/10.1117/12.2506500

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