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Proceedings Paper

The research of the laser facula of laser ranger finder in the far distance
Author(s): Rongguo Fu; Chula Su; Mengxi Li; Yiliang Guo; Yu Cheng; Benkang Chang
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Paper Abstract

This article describes the generation of the laser facula, and analyzes the energy characteristics of the facula. A testing device is designed to measure the facula of the laser light in the far distance, and the system can collect and analyze the laser facula. The testing system sets by the laser ranger finder, thousands of meters away from the target. A near infrared CCD (Charge Coupled Device) camera of high sensitivity is used to collect the facula of 1.06μm laser. Add a filter of 1.06μm before the CCD camera to get more accurate infrared information. A beam of the laser ranger finder shoots to the target. A infrared CCD and the laser ranger finder is synchronizing triggered. For real-time observation of the background, the system use another ordinary CCD and telephoto lenses. A series of laser facula which is collected by the infrared CCD is stored into computer as the form of bitmaps. The testing device uses median filter to denoise the facula pictures and use image processing to analyze the gray-scale of facula, thus the device can get the intensity distribution, the centroid position and its variation with the spot. The device uses image fusion to realize the background integration of white-light CCD and infrared CCD images.

Paper Details

Date Published: 3 March 2011
PDF: 8 pages
Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79121Z (3 March 2011); doi: 10.1117/12.873565
Show Author Affiliations
Rongguo Fu, Nanjing Univ. of Science & Technology (China)
Chula Su, Nanjing Univ. of Science & Technology (China)
Mengxi Li, Nanjing Univ. of Science & Technology (China)
Yiliang Guo, Nanjing Univ. of Science & Technology (China)
Yu Cheng, Nanjing Univ. of Science & Technology (China)
Benkang Chang, Nanjing Univ. of Science & Technology (China)

Published in SPIE Proceedings Vol. 7912:
Solid State Lasers XX: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh Shori, Editor(s)

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