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基于频率扫描干扰测量的扩展范围和速率的绝对距离测量,使用法布里-佩罗延迟线
Optics express
|December 19, 2025
概括
一个新的频率扫描干扰测量 (FSI) 系统使用被动的法布里-佩罗 (FP) 延迟线来实现高速,远程距离计量. 这一创新克服了带宽的限制,允许精确的测量与较低的数据处理需求.
科学领域:
- 光学计量学 在光学计量学
- 精密工程 精密工程是指精密的工程.
背景情况:
- 传统的频率扫描干扰测量 (FSI) 面临着对高速,远程距离测量的带宽限制.
- 现有的FSI系统往往需要高收购率和复杂的活跃切换机制.
研究的目的:
- 引入一个新的FSI系统,与一个被动的法布里-佩罗 (FP) 延迟线集成.
- 为了克服高速,远程距离计量中的带宽限制.
- 以使用低带宽探测器和信号处理来实现精确的范围估计.
主要方法:
- 该系统利用单个FP腔内的多个光学延迟来生成一个调制频率的子.
- 双腔体配置可以解决延迟顺序模两可的问题.
- 采用了一种具有100 kHz重复率和100 nm带宽的扫描VCSEL激光器.
主要成果:
- 已证明绝对范围测量高达1.4米,精度低于3ppm.
- 在相同的范围和重复率下,实现了比传统的FSI系统低67倍以上的最大采样率.
- 与传统的FSI相比,显示了显著的计算力度减少.
结论:
- 开发的FSI系统有效地克服了距离计量技术的带宽限制.
- 该系统为动态工业环境提供了一种具有成本效益,紧和可扩展的解决方案.
- 它与标准光纤组件兼容,为实时计量应用铺平了道路.
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