A Method of Measuring Laser Divergency Angle by Focus Spot Method Based on Comparative Measurement

Yan Feng Li; Zhi Yong An; Jin Song Wang; Zhi Gang Xu; Hai Bin Zhu

doi:10.4028/www.scientific.net/AMR.631-632.992

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 631-632A Method of Measuring Laser Divergency Angle by...

A Method of Measuring Laser Divergency Angle by Focus Spot Method Based on Comparative Measurement

Abstract:

his paper is based on image processing techniques, combined principle of Matrix CCD and image grabbing card , measured divergency angle of laser by focus spot method. In windows environment, using VC++ develop tools, achieved De-nosing and recognition of image and the measuring of laser divergency angle. A standard laser which of divergency angle is known is measured with focus spot proposed by the paper, the relative error ≦ 5%，which meets demand of test precision.

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Periodical:

Advanced Materials Research (Volumes 631-632)

Pages:

992-995

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.631-632.992

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Online since:

January 2013

Authors:

Yan Feng Li, Zhi Yong An, Jin Song Wang, Zhi Gang Xu, Hai Bin Zhu

Keywords:

Beam Divergence Angle, Focus Spot Method, Spot Radius

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References

[1] Jin Duan. Laser Spot Detection and Characteristic Analysis in Space Optical Communication. 2007 SPIE-The International Society for Optical Engineering. 2007, volume 6795.

Google Scholar

[2] Derrick P, Jeff G. New approach improves far-field messurements[J]. Laser Focus World, 2001, 7: 149-152.

Google Scholar

[3] Roundy K. Propagation factor quantifies laser beam performance[J]. Laser Focus World, 1999, 12: 119-122.

Google Scholar

[4] Jan pala, Miroslav Miler, and Ivo Aubrecht. Modifications of holographic diffractive doublets for collimation of highly elliptical beams from edgr-emitting diode lasers[J]. Proc. SPIE Int. Soc. Opt. Eng. 2003, 5036, (471).

DOI: 10.1117/12.498465

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