干涉式光纤陀螺用集成光引擎芯片(特邀)

Integrated Photonic Engine Chips for Interferometric Fiber Optic Gyroscopes(Invited)

传统分离式系统架构的干涉式光纤陀螺(IFOG),在综合性能提升上遭遇瓶颈,严重限制了导航系统整体效能的进一步升级,而研发集成了光引擎芯片的IFOG技术,能够有效应对上述难题,展现出巨大的应用潜力。本文回顾了IFOG系统中的集成光引擎芯片技术,概述了基于Sagnac效应的IFOG基本工作机理,并探讨了利用硅、磷化铟、二氧化硅、氮化硅等多种材料平台开发的多功能集成光引擎芯片。随后,详细分析了当前多材料体系混合集成光引擎芯片的技术现状,揭示了其在提高系统集成度与功能多样性方面的最新进展。最后,针对当前研究与应用中遇到的主要挑战进行了剖析,并展望了集成光引擎芯片技术在IFOG领域的未来发展路径。

Traditional interferometric fiber optic gyroscopes(IFOGs)are constrained by performance bottlenecks inherent in separate system architectures,which severely impede further enhancements in navigation system capabilities.The integration of IFOG technology with optical engine chips offers a compelling solution to these bottlenecks.This paper reviews the integrated optical engine chip technology used in IFOG systems.The paper begins with an overview of the basic working principles of IFOGs,based on the Sagnac effect,and investigates the development of multifunctional integrated optical engine chips using various materials,including silicon,indium phosphide,silicon dioxide,and silicon nitride.Subsequently,the paper presents a comprehensive analysis of the current state of hybrid integrated optical engine chips,showcasing recent advances in system integration and functional diversity.Finally,the main challenges encountered in current research and application are analyzed,and the future development path of integrated optical engine chip technology in the IFOG field is discussed.