Multi-Frequency Doppler Velocimetry Based on a Mode-Locked Distributed Bragg Reflector Laser
Multi-Frequency Doppler Velocimetry Based on a Mode-Locked Distributed Bragg Reflector Laser
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DOI：
10.3390/photonics10111254
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发表时间：
2023-11
期刊：
影响因子：
2.4
通讯作者：
Hao Song;D. Lu;Zhihao Zhang;Fei Guo;Daibing Zhou;Lingjuan Zhao
中科院分区：
文献类型：
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作者：
Hao Song;D. Lu;Zhihao Zhang;Fei Guo;Daibing Zhou;Lingjuan Zhao
利用锁模分布布拉格反射镜激光器的同步多模特性，实现了差分多频激光多普勒测速。该方案使得能够同时检测多个多普勒频移。获得了0.6 Hz、1.3 Hz和1.9 Hz的多个差分多普勒频移，平均速度为3.677 mm/s，标准差为0.122 mm/s，证明了交叉参考速度测量能力。测量结果也比较双频激光多普勒测速计划，使用电光调制。
A differential multi-frequency laser Doppler velocimetry is demonstrated, utilizing the synchronized multimode of a mode-locked distributed Bragg reflector laser. This scheme enables the simultaneous detection of multiple Doppler frequency shifts. Multiple differential Doppler shifts of 0.6 Hz, 1.3 Hz, and 1.9 Hz are obtained, with an average speed of 3.677 mm/s and a standard deviation of 0.122 mm/s, demonstrating a cross-referenced velocity measurement capability. The measurement results are also compared with the dual-frequency laser Doppler velocimetry scheme using electro-optical modulation.