光学
反射计
频域
图像分辨率
材料科学
频率响应
频率调制
瑞利散射
空间频率
航程(航空)
扫频响应分析
分辨率(逻辑)
时域
物理
带宽(计算)
声学
电信
电气工程
计算机科学
复合材料
计算机视觉
人工智能
工程类
作者
Yidai Zhu,Xinyu Fan,Zhaopeng Zhang,Zhengchao Yuan,Bingxin Xu,Zuyuan He
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-09-18
卷期号:48 (19): 4937-4937
摘要
We propose an optical frequency domain reflectometry (OFDR) with the assistance of a dual electro-optic frequency comb (EOFC), which is intended to improve the system spatial resolution. As the spatial resolution of an OFDR system is inversely proportional to the frequency sweep range, the EOFC acts as a multi-frequency light source for collecting Rayleigh backscattering signals, which are combined to extend the effective frequency sweep range. By utilizing this technique, we have successfully expanded the experimental frequency sweep range to hundreds of gigahertz, achieving a sub-millimeter spatial resolution.
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