Electromagnetically Actuated Variable Optical Attenuator With Configurable Dynamic Range

IF 2.5 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-08-13 DOI:10.1109/LPT.2025.3598486

Haoyue Zhang;Zixu Niu;Tao Chen;Mingyu Mei;Zhen Zhao;Jing Chen

{"title":"Electromagnetically Actuated Variable Optical Attenuator With Configurable Dynamic Range","authors":"Haoyue Zhang;Zixu Niu;Tao Chen;Mingyu Mei;Zhen Zhao;Jing Chen","doi":"10.1109/LPT.2025.3598486","DOIUrl":null,"url":null,"abstract":"A variable optical attenuator (VOA) based on magnetically induced micro-displacement with a configurable dynamic range is proposed. The copper coil wound around the input fiber collimator, driven by precisely controlled low currents, generates a magnetic field that couples with the paired bar magnets to achieve lateral displacement, enabling continuous optical attenuation. By varying the inclination angle <inline-formula> <tex-math>$\\alpha $ </tex-math></inline-formula> (0-90°) of the magnet pairs relative to the horizontal plane, the system simultaneously achieves both wide-range optical attenuation and precision-tunable optical coupling efficiency. Experimental results show that within the 0–20 mA current range, adjusting the angle <inline-formula> <tex-math>$\\alpha $ </tex-math></inline-formula> modifies the attenuation control precision, thereby enabling configurable dynamic ranges. Specifically, attenuation ranges of approximately 20 dB, 40 dB, and 60 dB are achieved at <inline-formula> <tex-math>$\\alpha = 0^{\\circ }$ </tex-math></inline-formula>, 45° and 90°, respectively, allowing the device to be adapted to various application scenarios.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 22","pages":"1317-1320"},"PeriodicalIF":2.5000,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Photonics Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11124218/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

A variable optical attenuator (VOA) based on magnetically induced micro-displacement with a configurable dynamic range is proposed. The copper coil wound around the input fiber collimator, driven by precisely controlled low currents, generates a magnetic field that couples with the paired bar magnets to achieve lateral displacement, enabling continuous optical attenuation. By varying the inclination angle

$\alpha $

(0-90°) of the magnet pairs relative to the horizontal plane, the system simultaneously achieves both wide-range optical attenuation and precision-tunable optical coupling efficiency. Experimental results show that within the 0–20 mA current range, adjusting the angle

$\alpha $

modifies the attenuation control precision, thereby enabling configurable dynamic ranges. Specifically, attenuation ranges of approximately 20 dB, 40 dB, and 60 dB are achieved at

$\alpha = 0^{\circ }$

, 45° and 90°, respectively, allowing the device to be adapted to various application scenarios.

查看原文本刊更多论文

动态范围可配置的电磁驱动可变光衰减器

提出了一种动态范围可配置的基于磁致微位移的可变光衰减器。缠绕在输入光纤准直器周围的铜线圈，由精确控制的低电流驱动，产生磁场，该磁场与成对的条形磁铁耦合，以实现横向位移，从而实现连续的光学衰减。通过改变磁体对相对于水平面的倾角$\alpha $（0-90°），系统可以同时实现大范围的光衰减和精确可调的光耦合效率。实验结果表明，在0 ~ 20 mA电流范围内，调节角度可以改变衰减控制精度，从而实现可配置的动态范围。具体来说，$\alpha = 0^{\circ}$、45°和90°的衰减范围分别约为20 dB、40 dB和60 dB，从而使器件适应各种应用场景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.