Algorithm research on focal spot reconstruction for high power laser output

xie xu dong; chen bo; he ling; liu hua; xia yan wen; su chun yan; lu zong gui

Volume 15 Issue 03

Mar. 2003

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Abstract

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wang wen-jun, gao xue-xi, li shu-hong, et al. Influence of temperature on rare earth sandwich double naphthalocyanines Langmuir-Blodgett multilayer films[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

xie xu dong, chen bo, he ling, et al. Algorithm research on focal spot reconstruction for high power laser output[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

xie xu dong, chen bo, he ling, et al. Algorithm research on focal spot reconstruction for high power laser output[J]. High Power Laser and Particle Beams, 2003, 15.

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Algorithm research on focal spot reconstruction for high power laser output

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988 ,Mianyang 621900,China

Publish Date: 2003-03-15

Abstract

Abstract

With the combination of CCD imaging unit and traditional multiimage camera to measure far-field distribution of laser output, the reconstruction algorithm for focal spot of high power solid state laser output was described. The geometric cores of these focal spots was abstracted to center these spots by virtue of edge computational kernel applied in the field of image processing, nesting algorithm for focal spot reconstruction is put forward. It can precisely center these spots even if they are saturated partially and instantly reconstruct original focal spot, which makes it feasible to provide realtime data for laser control.
- focal spot,
- nesting algorithm,
- edge computational kernel,
- ccd,
- far-field distribution

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