Integrated Optical Chip With Low-Loss Waveguide Coupler for Miniaturized Fiber Optic Gyroscopes

IF 4.3 2区综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Journal Pub Date : 2025-04-18 DOI:10.1109/JSEN.2025.3560536

Wenbin Chen;Xuechen Zhang;Yongkang Yang;Baiang Qu;Hongjie Guo;Xingyu Yang;Yali Zhao;Yingchun Cao;Wentao Guo;Manqing Tan

引用次数: 0

Abstract

We present an integrated optical chip (IOC) featuring a low-loss and compact waveguide coupler for miniaturized interferometric fiber optic gyroscopes (IFOGs). The IOC integrates a superluminescent diode (SLD), photodiode (PD), integrated coupler chip (ICC), and trans-impedance amplifier (TIA) within a compact 28 mm2 footprint, significantly reducing the size, weight, and cost compared to conventional discrete modules. The gyroscope prototype based on this IOC achieves bias stability of 0.039°/h, bias instability of 0.0233°/h, and an angular random walk (ARW) coefficient of 0.00549°/

$\mathrm{h}^{\text {1/2}}$

over a 100-s integration time. This integration strategy offers a high-precision, space-saving solution for tactical-grade applications, such as autonomous aerial vehicles (AAVs) and compact navigation systems, representing a significant breakthrough in the integration of fiber-optic gyroscopes.

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小型光纤陀螺仪用低损耗波导耦合器集成光芯片

我们提出了一种集成光学芯片（IOC），具有低损耗和紧凑的波导耦合器，用于小型化干涉光纤陀螺仪（IFOGs）。IOC集成了超发光二极管（SLD）、光电二极管（PD）、集成耦合器芯片（ICC）和反阻抗放大器（TIA），占地面积为28 mm2，与传统的分立模块相比，显著减小了尺寸、重量和成本。基于该IOC的陀螺仪样机在100秒的积分时间内实现了0.039°/h的偏置稳定性和0.0233°/h的偏置不稳定性，角随机游走（ARW）系数为0.00549°/ $\ mathm {h}^{\text{1/2}}$。这种集成策略为战术级应用（如自主飞行器（aav）和紧凑型导航系统）提供了高精度、节省空间的解决方案，代表了光纤陀螺仪集成的重大突破。

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

IEEE Sensors Journal 工程技术-工程：电子与电气

CiteScore

7.70

自引率

14.00%

发文量

2058

审稿时长

5.2 months

期刊介绍： The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice