超高分辨率、超大动态范围光纤传感通用测试系统

项目名称： 超高分辨率、超大动态范围光纤传感通用测试系统

项目编号： No.61227013

项目类型： 专项基金项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 杨军

作者单位： 哈尔滨工程大学

项目金额： 290万元

中文摘要： 工欲善其事，必先利其器。测试技术的发展水平代表着科技水平。本项目面向精密级光纤陀螺等超高性能光纤传感器亟需高精度器件级测试新方法和缺乏光路级评估新手段的迫切需求。在前期研究基础上，攻克综合噪声抑制、色散动态补偿、超大范围光程扫描等单元关键技术，和系统性能标定与在线校准等仪器化关键技术，实现超高灵敏度、超大动态范围光纤传器通用测试系统的研制，使偏振串扰灵敏度达到-100dB，动态范围保持在100dB，在空间分辨率达到±5cm时，测量光纤长度扩展到5km，实现测试系统的单项与综合技术指标的全面突破，性能超越国际同类研究水平。完成对光源、耦合器、光纤敏感环、Y波导等陀螺关键器件的高精度与通用化测试，陀螺半闭合与闭合光路整体性能的在线与非破坏性评估，将分布式偏振串扰发展成为一种光纤器件与光路性能测试的通用方法和标准，为超高精度光纤传感系统的器件级与光路级测试和系统研制提供一种有效的技术手段。

中文关键词： 偏振串扰；超高灵敏度；超大动态范围；光纤陀螺核心器件；测试方法

英文摘要： A workman must first sharpen his tools if he is to do his work well. Generally, the development level of measuring and testing technology represents scientific and technological level. This project focuses on developing a new high precision testing method and an optical path evaluation method which can satisfy the pressing needs of ultra-high-precision fiber optic sensor such as fiber optic gyro at precision level. Based on the prophase research, this project aims to develop some unit key technologies such as dispersion compensation, comprehensive noise inhibition and ultra-large light path scanning range, and key technology for instrumentation such as online adjustment and the system performance calibration to realize a universal test system with high sensitivity and ultra-large dynamic range for fiber optic sensing system. With parameters of 100dB dynamic range, -100dB polarization crosstalk sensitivity, ±5cm spatial resolution and up to 5km measurement optical fiber length, we can realize the technical breakthrough of the testing system both in single and comprehensive properties which beyond the international level of the similar research work. In the project we will finish the high-precision and universal testing for the key components of gyro such as light source, fiber coupler, sensitive fiber ring and Y-

英文关键词： by;):Polarization mode crosstalk；Ultra-high sensitivity；Ultra-large dynamic range；key device in fiber-optic gyros；test method