Study on optical isolator based on asymmetric core magneto-optic photonic crystal fiber

Weilong Wang; Shengbo Li; Taiki Matsuzaki; Zejun Zhang; Akito Iguchi; Yasuhide Tsuji

doi:10.1117/12.3048536

5 December 2024 Study on optical isolator based on asymmetric core magneto-optic photonic crystal fiber

Weilong Wang, Shengbo Li, Taiki Matsuzaki, Zejun Zhang, Akito Iguchi, Yasuhide Tsuji

Author Affiliations +

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341827 (2024) https://doi.org/10.1117/12.3048536
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

This paper proposes a structure of Magneto-Optic Photonic Crystal Fiber (MO-PCF) with an asymmetric core structure. By applying an external magnetic field perpendicular to both the polarization direction and the propagation direction, the non-reciprocal transmission properties can be achieved in terms of light propagation direction. To analyze the transmission characteristics of PCFs, we used the Full Vector Finite Element Method (FV-FEM). We analyzed various core shapes to determine their impact on the Non-Reciprocal Phase Shift (NRPS) and identified several core structures that significantly increase NRPS. By optimizing the structure parameters, the forward-propagating mode of MO-PCF and the mode of non-magnetic PCF satisfy the phase matching condition, while ensuring that the backward-propagating mode of the MO-PCF and non-magnetic PCF do not couple, and then effect of optical isolator is achieved. Based on these analyses, we proposed a directional coupler type optical isolator that configures MO-PCF in parallel with non-magnetic PCF.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Weilong Wang, Shengbo Li, Taiki Matsuzaki, Zejun Zhang, Akito Iguchi, and Yasuhide Tsuji "Study on optical isolator based on asymmetric core magneto-optic photonic crystal fiber", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341827 (5 December 2024); https://doi.org/10.1117/12.3048536

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