Magnetic controllability of non-circularly symmetric LP-mode field using few-mode magneto-optical fibers

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-05-10 DOI:10.1016/j.optlastec.2025.113131

Yuhao Wen, Baojian Wu, YuXin Huang, Feng Wen, Kun Qiu

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引用次数: 0

Abstract

This paper starts with the orbital angular momentum (OAM) eigenmode of few-mode-magneto-optical fibers (FM-MOFs) to reveal the mechanism of magnetically controlling the modal field of linear polarization (LP) modes. The correctness of the theoretical analysis is verified by simulation. Our theoretical analysis shows that the rotation angles of the modal pattern and polarization of the

{LP}_{\ln} (l ⩾ 1)

modes are respectively proportional to the difference and sum of the magneto-optical coupling coefficients between the eigen OAM components. Therefore, the magnetic field sensitivity of polarization direction is greatly higher than that of modal pattern. Based on the FM-MOFs, a novel magneto-optical mode rotator is put forward for fast controllability and precise repeatability, with potential application to mode division multiplexing systems.

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利用少模磁光光纤研究非圆对称lp模场的磁可控性

本文从少模磁光光纤（FM-MOFs）的轨道角动量（OAM）特征模入手，揭示了磁控制线偏振（LP）模态场的机理。通过仿真验证了理论分析的正确性。我们的理论分析表明，LPln（l小于1）模式的模态模式和极化的旋转角度分别与特征OAM组件之间的磁光耦合系数的差和和成比例。因此，极化方向的磁场灵敏度大大高于模态方向的磁场灵敏度。在此基础上，提出了一种具有快速可控性和精确重复性的磁光模式旋转器，在模分复用系统中具有潜在的应用前景。

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

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems