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人工晶体学报 ›› 2026, Vol. 55 ›› Issue (7): 1127-1134.DOI: 10.16553/j.cnki.issn1000-985x.2026.0076

• 研究论文 • 上一篇    下一篇

镁铝尖晶石单晶光纤光栅的制备及超高温传感特性研究

李倩华1(), 王涛2, 李锦烁1, 国旗1(), 张健2,3, 贾志泰2, 于永森1()   

  1. 1.吉林大学电子科学与工程学院、集成电路学院,集成光电子全国重点实验室,长春 130012
    2.山东大学晶体材料全国重点实验室,晶体材料研究院,新一代半导体材料研究院,济南 250100
    3.江苏晶英光电科技有限公司,徐州 221116
  • 收稿日期:2026-04-30 出版日期:2026-07-20 发布日期:2026-08-04
  • 通信作者: 国旗,博士,助理教授。E-mail:qiguo@jlu.edu.cn
    于永森,博士,教授。E-mail:yuys@jlu.edu.cn
  • 作者简介:李倩华(1999—),女,山东省人,博士研究生。E-mail:qhli24@mails.jlu.edu.cn
    国旗,助理教授,2016年和2022年在吉林大学电子科学与工程学院分别获得学士和博士学位,主要从事飞秒激光微纳加工、特种光纤光栅制备、单晶光纤光栅超高温传感等研究。主持国家自然科学基金青年基金项目,近年来在International Journal of Extreme Manufacturing、Journal of Lightwave Technology、Optics Letters等学术期刊发表SCI论文30余篇,授权发明专利5项。
    于永森,教授、博士生导师。主要从事飞秒激光微纳加工、特种光纤光栅制备、超高温光纤传感器等研究。主持和参加了国家自然科学基金重大项目、重点项目等。近年来在International Journal of Extreme Manufacturing、Journal of Lightwave Technology、Optics Letters等学术期刊发表SCI论文60余篇,授权国家发明专利10项。研究成果获得教育部自然科学奖一等奖一项、吉林省科学技术奖一等奖一项。
  • 基金资助:
    国家自然科学基金(U24A20312);国家自然科学基金(62305130);国家自然科学基金(62131018);国家自然科学基金(62435012);国家重点研发计划(2023YFB4606900);国家科技重大专项(2025ZD0617200)

Fabrication and Ultra-High Temperature Sensing Characteristics of MgAl2O4 Single-Crystal Fiber Bragg Gratings

LI Qianhua1(), WANG Tao2, LI Jinshuo1, GUO Qi1(), ZHANG Jian2,3, JIA Zhitai2, YU Yongsen1()   

  1. 1.State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,College of Integrated Circuits,Jilin University,Changchun 130012,China
    2.Institute of Novel Semiconductors,Institute of Crystal Materials,State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China
    3.Jiangsu Jingying Optoelectronics Technology Co.,Ltd.,Xuzhou 221116,China
  • Received:2026-04-30 Online:2026-07-20 Published:2026-08-04

摘要: 针对极端高温环境下高温监测的需求,本文采用飞秒激光逐线扫描技术在[100]、[110]及[111]三种不同晶向的镁铝尖晶石单晶光纤(MSCF)中刻写了高质量光栅,并对其在室温(20 ℃)至1 600 ℃的温度响应特性进行了实验分析。结果表明,不同晶向的光栅均表现出良好的热稳定性与循环重复性,其中心波长随温度升高呈规律性红移趋势,且得益于立方晶系的各向同性,三种晶向的光栅在高温区展现出相近的灵敏度(约 39 pm/℃)。通过与蓝宝石光纤布拉格光栅的传感特性对比分析,进一步验证了MSCF在高温环境中的潜在优势及在超高温极端环境传感领域的应用潜力。

关键词: 飞秒激光; 镁铝尖晶石单晶光纤; 晶体取向; 逐线扫描; 光纤布拉格光栅; 高温传感

Abstract: In order to meet the demand for high-temperature monitoring in extreme high-temperature environments, this paper employs a femtosecond laser line-by-line scanning technique to inscribe high-quality gratings in magnesium aluminate (MgAl2O4) single-crystal fibers (MSCF) oriented along the [100], [110], and [111] crystallographic directions, respectively. The temperature response characteristics of these gratings were experimentally analyzed over the temperature range from room temperature (20 ℃) to 1 600 ℃. The results indicate that gratings with different crystal orientations exhibit excellent thermal stability and cyclic repeatability, and their central wavelengths show a regular redshift trend with increasing temperature. Benefiting from the intrinsic isotropy of the cubic crystal system, the gratings with three different crystal orientations show similar sensitivities (~39 pm/℃) in the high-temperature region. Through a comparative analysis with the sensing characteristics of sapphire fiber Bragg gratings (SFBGs), this study further validates the potential advantages of MSCF in high-temperature environments, demonstrating the application potential of MSCF in ultra-high temperature extreme environment sensing scenarios.

Key words: femtosecond laser; MgAl2O4 single-crystal fiber; crystal orientation; line-by-line scanning; fiber Bragg grating; high-temperature sensing

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