Large-scale absolute distance measurement with dual free-running all-polarization-maintaining femtosecond fiber lasers

被引：2

作者：

李跃鹏 ^{[1
]}

蔡娅雯 ^{[2
]}

李润敏 ^{[1
]}

师浩森 ^{[1
]}

田昊晨 ^{[1
]}

赫明钊 ^{[3
]}

宋有建 ^{[1
]}

胡明列 ^{[1
]}

机构：

[1] Ultrafast Laser Laboratory, Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education, School of Precision Instruments and Opto-electronics Engineering, Tianjin University

[2] Institute of Spacecraft System Engineering, China Academy of Space Technology

[3] National Institute of Metrology

来源：

ChineseOpticsLetters | 2019年 / 17卷 / 09期

基金：

中国国家自然科学基金;

关键词：

filter; Kalman; Large-scale absolute distance measurement with dual free-running all-polarization-maintaining femtosecond fiber lasers;

D O I：

暂无

中图分类号：

TN248 [激光器];

学科分类号：

摘要：

We demonstrate a robust femtosecond LIDAR setup by using two free-running environmentally stable allpolarization-maintaining nonlinear amplified loop mirror mode-locked fiber lasers. Based on the asynchronous optical sampling method, a ranging accuracy of ±2 μm within 65 m has been achieved, as tested in an 80-m-long underground optical tunnel. Through the Kalman filter in real-time data processing, the measurement accuracy can be maintained at a 200 Hz update rate. This setup provides a practical tool for various large-scale industrial and astronomical ranging applications.

引用

页码：59 / 63

页数：5

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