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Compact all-fiber pulsed coherent Doppler lidar system for wind sensing
1Information Technology R and D Center, Mitsubishi Electric Corporation, Kanagawa, Japan. Kameyama.shumpei@dn.MitsubishiElectric.co.jp
Applied Optics
|March 27, 2007
Summary
A new compact 1.5 micrometer all-fiber pulsed coherent Doppler lidar system was developed for wind sensing. This system achieves over 1 km wind sensing range with 150 m resolution in normal atmospheric conditions.
Area of Science:
- Atmospheric science
- Optical engineering
- Remote sensing
Background:
- Wind sensing is crucial for weather forecasting and aviation safety.
- Traditional wind measurement techniques have limitations in spatial and temporal resolution.
- Coherent Doppler lidar offers a promising alternative for high-resolution wind profiling.
Purpose of the Study:
- To develop a compact, all-fiber pulsed coherent Doppler lidar system for wind sensing.
- To incorporate variable pulse width and automatic polarization control for enhanced performance.
- To evaluate the system's theoretical and experimental wind sensing capabilities.
Main Methods:
- Development of a 1.5 micrometer all-fiber pulsed coherent Doppler lidar system.
- Integration of variable pulse width and automatic polarization control functionalities.
- System configuration description and key component explanation.
- Theoretical performance estimation and experimental validation.
Main Results:
- The developed lidar system is compact and all-fiber based.
- Variable pulse width and automatic polarization control functions were successfully implemented.
- Experimental results align with theoretical performance estimations.
- A measurable range of approximately 1 km or more was achieved with 150 m range resolution at >80% detection probability under normal atmospheric conditions.
Conclusions:
- The developed compact all-fiber pulsed coherent Doppler lidar system is effective for wind sensing.
- The system demonstrates reliable performance with a significant measurable range and resolution.
- This technology has potential applications in meteorological research and operational wind monitoring.
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