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基于模式锁定半导体激光器的多普勒激光器

Yibing Chen¹, Mengxi Zhou¹, Wenxuan Ma¹

¹College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.

|November 27, 2025

概括

这项研究引入了使用模式锁定半导体激光器的多普勒激光雷达测速系统. 它通过使用多个激光模式来实现移动物体的高精度速度测量,并增强了强度.

科学领域:

光学工程是指光学工程.
激光物理激光物理
计量学计量学计量学

背景情况:

多普勒激光雷达系统对于远程速度测量至关重要.
模式锁定半导体激光器 (ML-SL) 提供稳定的光频.
提高激光雷达测速仪的稳定性和精度是一个持续的挑战.

研究的目的:

介绍一款使用ML-SL源的新型多普勒激光雷达系统.
为了利用多个相位相关模式来改进速度测量.
通过实验验证系统的精度和分辨率.

主要方法:

开发了一种多普勒激光雷达系统,其ML-SL源具有Fabry-Pérot腔和可和吸收器.
从光学频率组合中利用多个相相关模式.
交叉引用多个多普勒转移信号以提高系统的稳定性.

主要成果:

精确的速度测量在0.005m/s到0.5m/s的速度之间实现.
最大的绝对误差为0.00064 m/s,最小的误差为0.00003 m/s.
使用多个牙可将最大绝对误差降低35%,相比单牙使用.

结论:

开发的多普勒激光雷达系统表现出高精度和稳定性.
多模式方法显著提高了速度计的准确性.
该系统提供了出色的速度分辨率,可通过频率分辨率调整进行调整.

关键词:

多普勒激光雷达是一个多普勒激光雷达.锁定模式的半导体激光器测量速度测量速度的测量速度.速度测量误差速度测量的错误速度分辨率速度的分辨率.

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