Continuous wave synthetic low-coherence wind sensing Lidar: motionless measurement system with subsequent numerical...

Area of Science:

• Atmospheric Science
• Optical Remote Sensing
• Laser Physics

Background:

• Continuous wave (CW) Lidar systems are crucial for atmospheric aerosol detection and wind velocity measurements.
• Traditional CW Lidar systems often involve moving parts and lack flexible range resolution.
• The need for advanced remote sensing techniques with enhanced capabilities is growing.

Purpose of the Study:

• To present a novel continuous wave (CW) Lidar system for detecting atmospheric aerosol particle scattering.
• To demonstrate its application in remote sensing of wind velocities.
• To highlight the system's unique features of constant spatial resolution and numerical range scanning.

Main Methods:

• The Lidar system employs a low-coherence interferometric setup.
• It is powered by a synthetic broadband laser source with an adjustable Gaussian power density spectrum.
• The system operates without any moving parts, enabling numerical range scanning post-measurement.

Main Results:

• The Lidar system achieves constant spatial resolution, independent of range, determined by the electronically adjustable laser bandwidth.
• Numerical range scanning allows for full range information retrieval from a single measurement.
• The absence of moving parts simplifies the system and enhances its reliability.

Conclusions:

• The developed CW Lidar system offers significant advantages over traditional systems, including constant resolution and flexible range scanning.
• This technology advances the field of atmospheric remote sensing, particularly for wind velocity measurements.
• The system's design paves the way for more efficient and versatile Lidar applications.