A system and method for finding singular points of fiber Brillouin frequency shift
By designing a fiber optic Brillouin frequency shift singularity finding system, and utilizing optical structures and data processing methods, singularities in optical fibers can be accurately located, solving the problem of insufficient accuracy in existing fiber optic Brillouin sensing technologies and improving the accuracy of environmental change detection.
CN122408838APending Publication Date: 2026-07-17CHINA PETROLEUM PIPELINE ENG CO LTD +3
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Patent Information
- Application Number
- CN202510064366.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies cannot accurately locate singularities in fiber optic Brillouin sensors, affecting the accuracy of engineering applications.
Method used
Design a fiber optic Brillouin frequency shift singularity finding system, including a light source excitation device, an optical signal receiving device, and a signal acquisition and processing device. By acquiring Brillouin and vibration signal information arrays, the singularity location is determined using optical structures and data processing methods.
Benefits of technology
This technology enables accurate positioning of fiber optic Brillouin frequency shift, improving the accuracy and reliability of fiber optic sensing in detecting environmental changes.
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Abstract
本发明公开了一种光纤布里渊频移的奇异点寻找系统和寻找方法，光源激发装置发出脉冲光的第一光连接口与被测光纤连接；光源激发装置发出脉冲光的第二光连接口与光信号接收装置的振动信号接收单元连接；光源激发装置发出激光的第三光连接口与光信号接收装置的布里渊信号接收单元连接；信号采集处理装置分别与振动信号接收单元和布里渊信号接收单元连接；光源激发装置激发发出脉冲光和连续激光，部分脉冲光输入被测光纤；光信号接收装置探测接收布里渊信号和振动信号；信号采集处理装置分别采集被测光纤的布里渊随距离分布的第一信息数组和采集被测光纤的振动随距离分布的第二信息数组，并基于第一信息数组和第二信息数组确定光纤布里渊奇异点。
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