A Compact High-Precision Cascade PID-Control Laser Driver for Airborne Coherent LiDAR Applications
Zixuan Ming,
Xianzhuo Li,
Yanyi Wang,
Yuanzhe Qu,
Zhiyong Lu,
Honghui Jia,
Haoming Yuan,
Qianwu Zhang,
Junjie Zhang,
Yingxiong Song
Affiliations
Zixuan Ming
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
Xianzhuo Li
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
Yanyi Wang
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
Yuanzhe Qu
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
Zhiyong Lu
Key Laboratory of Space Laser Transmission and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201899, China
Honghui Jia
Key Laboratory of Space Laser Transmission and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201899, China
Haoming Yuan
Teralink Optical Corporation, Shanghai 200443, China
Qianwu Zhang
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
Junjie Zhang
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
Yingxiong Song
Key Laboratory of Specialty Optics and Optical Access Networks, Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China
This paper solves the challenge of precise dual-frequency laser control in Airborne Coherent Doppler LiDAR systems by implementing an innovative laser driver architecture, which integrates compact hardware design with cascade Proportional-Integral-Derivative (PID) control and a frequency–temperature compensation mechanism. The experimental results demonstrate eminent performance with long-term temperature fluctuation below 0.007 °C, temperature stabilizing time under 4 s and long-term power fluctuation of the linear constant current source being <1%. The system enables wide-range temperature–frequency adjustment for individual lasers and dynamically adjusts the dual-laser beat frequencies between −1 GHz and +2 GHz, achieving the frequency difference fluctuation within 3 MHz. These achievements greatly enhance LiDAR performance and create possibilities for broader applications in dynamic environmental sensing, atmospheric monitoring, deep-space exploration, and autonomous systems.
