Giant magneto-optic response in rare-earth doped glasses and manufacturing of related devices and sensors

稀土掺杂玻璃中的巨磁光响应及相关器件和传感器的制造

• 批准号: EP/S013776/1
• 负责人: Gilberto Brambilla
• 金额: $ 102.81万
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FS013776%2F1
• 关键词: Giant; magneto; optic; response; rare

The magneto-optic effect is the core part of optical isolators and widely used in optical sensors. The market of optical isolators was estimated to be $0.7B in 2016 and is expected to grow at 5% per annum while that of optical fibre sensors has grown continuously in the last two decades and from $3.38B in 2016 it is expected to reach $5.98B in 2026. To date fiberized devices and sensors based on the magneto optic effect have relied on simple telecom fibres or hybrid solutions with expensive crystals. This project proposes new manufacturing technologies for high performance optical isolators and current/magnetic field sensors aimed to replace the traditional hybrid approach based on crystals with novel glasses/fibres. This approach relies on our recent discovery that slightly-doped Gd-doped glass fibres exhibit a giant magneto-optic coefficient, similar to crystals, yet maintaining low-cost, low loss and high compatibility with fibres. This proposed programme spans from the investigation of giant magneto-optic effect in slightly doped glasses to the manufacture of specialty silica fibres, through the design of fiberized isolators and novel fibre based frequency conversion devices, and their combination in suitable systems for applications in security, industry and medicine. Although the initial effort will relate to the fabrication and characterization of novel glass compositions for glasses and fibres with giant magneto-optic response, the newly developed fibres will then be used to manufacture novel sensors and devices for selected practical industrial implementations in optical isolators and magnetic/current sensing.

磁光效应是光隔离器的核心部分，广泛应用于光传感器中。2016年光隔离器市场估计为7亿美元，预计每年增长5%，而光纤传感器市场在过去二十年中持续增长，预计将从2016年的33.8亿美元增长到2026年的59.8亿美元。迄今为止，基于磁光效应的光纤化设备和传感器依赖于简单的电信光纤或具有昂贵晶体的混合解决方案。该项目提出了高性能光隔离器和电流/磁场传感器的新制造技术，旨在用新型玻璃/光纤取代基于晶体的传统混合方法。这种方法依赖于我们最近的发现，即轻微掺杂的Gd掺杂的玻璃纤维表现出巨大的磁光系数，类似于晶体，但保持低成本，低损耗和高兼容性的纤维。该计划涵盖从轻微掺杂玻璃中的巨磁光效应的研究到特种二氧化硅纤维的制造，通过设计光纤化隔离器和新型光纤频率转换设备，以及它们在安全，工业和医学应用中的合适系统的组合。虽然最初的努力将涉及制造和表征的新型玻璃组合物的玻璃和纤维与巨大的磁光响应，新开发的纤维，然后将用于制造新的传感器和设备，为选定的实际工业实施的光隔离器和磁/电流传感。

项目成果

Compact high-resolution FBG strain interrogator based on laser-written 3D scattering structure in flat optical fiber.

• DOI: 10.1038/s41598-023-35708-1
• 发表时间: 2023-05-31
• 期刊: SCIENTIFIC REPORTS
• 影响因子: 4.6
• 作者: Falak, Przemyslaw;Lee, Timothy;Zahertar, Shahrzad;Shi, Bo;Moog, Bruno;Brambilla, Gilberto;Holmes, Christopher;Beresna, Martynas
• 通讯作者: Beresna, Martynas

Multi-parameter optical gauge based on mode coupling effect in asymmetric index multi-core fibres

• DOI: 10.1016/j.optlaseng.2022.107047
• 发表时间: 2022
• 期刊: Optics and Lasers in Engineering
• 影响因子: 4.6
• 作者: O. Arrizabalaga;Q. Sun;Timothy Lee;J. Zubía;Javier Velasco Pascual;I. Ocáriz;A. Schülzgen;R. Amezcua-correa;G. Brambilla;M. Beresna

Innovative Materials for Photonics: Extraordinary Properties with a Manufacturing Challenge (Keynote)

光子学创新材料：具有制造挑战的非凡特性（主题演讲）

• 发表时间: 2023
• 作者: G. Brambilla

Nanostructuring: the ultimate frontier in the manufacturing of glass optical fibres (Keynote)

纳米结构：玻璃光纤制造的终极前沿（主题演讲）

• 发表时间: 2023
• 作者: Brambilla G