All-fiber polarization modulation using Bi2O2S/PVA thin film as modulator

IF 4.2 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-09-02 DOI:10.1016/j.optmat.2025.117468

Xiaoyou Song , Yun Ye , Zian Cheak Tiu , Lili Tao , Hoong Pin Lee , Sulaiman Wadi Harun

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引用次数: 0

Abstract

In this work, we experimentally demonstrated all-fiber photon-to-photon polarization modulation using Bi₂O₂S thin film as a modulator. A CW pump laser functions as a controller to heat the Bi₂O₂S thin film and induce a thermo-optic effect. The polarization state of the signal light rotated linearly as the refractive index of Bi₂O₂S thin film changed with the increase of the pump. As the pump power increased from 0 mW to 420 mW, the azimuth angle of the signal light rotated linearly from 0° to 40.35°. The performance of the proposed polarization modulator is highly linear, with the R² of 0.986 and a sensitivity of 0.1024°/mW. This work demonstrated a simple and practical method to control the polarization state of light, which exhibits great potential to solve the polarization impairment issue in optical communication systems and lays a foundation for industrial growth in all-optical systems.

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采用Bi2O2S/PVA薄膜作为调制器的全光纤偏振调制

在这项工作中，我们实验证明了使用Bi2O2S薄膜作为调制器的全光纤光子对光子偏振调制。连续波泵浦激光器作为控制器对Bi2O2S薄膜进行加热并诱导热光效应。随着泵浦的增加，信号光的偏振态随Bi2O2S薄膜折射率的变化呈线性旋转。当泵浦功率从0 mW增加到420 mW时，信号光的方位角从0°线性旋转到40.35°。该偏振调制器具有良好的线性特性，R2为0.986，灵敏度为0.1024°/mW。本工作展示了一种简单实用的控制光偏振状态的方法，对解决光通信系统中的偏振损伤问题具有很大的潜力，为全光系统的工业发展奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.