摘要
绝对距离测量技术是动态和大范围空间测量的核心。新兴的双光梳测距系统可以利用其相位分辨能力和频率准确性实现高精度及快速距离测量。利用两台相干的光频梳,双光梳测距系统能够实现时间信息和相位信息的快速响应,突破了传统测距系统中的响应带宽、非模糊距离、动态测量等方面的限制。本文介绍了双光梳测距系统,总结归纳了实现该测距系统的关键技术。随着光频梳技术的发展和成熟,双光梳测距系统将有希望展开各种专业应用。
Absolute distance measurement is a fundamental technique in mobile and large-scale dimensional metrology. Dual-comb ranging is emerging as a powerful tool that exploits phase resolution and frequency accuracy for high-precision and fast-rate distance measurement. Using two coherent frequency combs, dual-comb ranging allows time and phase response to be measured rapidly. It breaks through the limitations related to the responsive bandwidth, ambiguity range, and dynamic measurement characteristics of conventional ranging tools. This review introduces dual-comb ranging and summarizes the key techniques for realizing this ranging tool. As optical frequency comb technology progresses, dualcomb ranging shows promise for various professional applications.
引文
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