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arXiv · 2207.13553

Type of Non-reciprocity in Fiber Sagnac Interferometer Induced by Geometric Phases

Dongzi Zhao·Jing-Zheng Huang·Tailong Xiao·Hongjing Li·Xiaoyan Wu·Guihua Zeng
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Abstract

The non-reciprocity of Sagnac interferometer provides ultra-high sensitivity for parameter estimation and offers a wide range of applications, especially for optical fiber sensing. In this work, we study a new type of non-reciprocity existed in optical fiber Sagnac interferometer where the polarization dependent loss is taken into consideration. In particular, this non-reciprocity is irrelevant to the physical effects that being considered in previous studies, which originates from the geometric phases induced by continuous-weak-measurement. In consequence, it has a unique phenomenon of sudden phase transition, which may open a new way for the future design of high precision optical fiber sensors.

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Dongzi Zhao, Jing-Zheng Huang, Tailong Xiao, Hongjing Li, Xiaoyan Wu, Guihua Zeng. 2022-07-27. Type of Non-reciprocity in Fiber Sagnac Interferometer Induced by Geometric Phases. https://doi.org/10.1364/oe.441981

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