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Efficiency analysis of homodyne detection for a coherent lidar with adaptive optics
- Source :
- Journal of the Korean Physical Society. 69:1750-1754
- Publication Year :
- 2016
- Publisher :
- Korean Physical Society, 2016.
-
Abstract
- For a coherent lidar, the efficiency of homodyne detection is a significant factor. Adaptive optics (AO) is an effective way to correct the turbulence-induced wavefront distortions. Based on our previous works, an expression for the homodyne detection efficiency is given. The results of the numerical simulation show that the atmospheric coherent length has an influence on the homodyne detection efficiency for a fixed atmospheric Greenwood frequency and a closed-loop control bandwidth. In addition, an experimental AO system is employed to verify the effect of the AO on the coherent lidar. The results show that the homodyne detection efficiency is obviously improved after aberrations are corrected. The conclusion of this paper provides a reference for designing an AO system for a coherent lidar.
- Subjects :
- Wavefront
Physics
Computer simulation
business.industry
Bandwidth (signal processing)
General Physics and Astronomy
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
law.invention
010309 optics
Greenwood frequency
Lidar
Optics
Homodyne detection
law
0103 physical sciences
Radar
0210 nano-technology
business
Adaptive optics
Remote sensing
Subjects
Details
- ISSN :
- 19768524 and 03744884
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- Journal of the Korean Physical Society
- Accession number :
- edsair.doi...........940a18bc5b77d43cbeb98e39d13d8918