Application of  subaperture stitching technology to test of large and steep aspherical surface

wang xiao-kun; wang li-hui; zheng li-gong; xue dong-lin; deng wei-jie; zhang xue-jun

Volume 19 Issue 07

Mar. 2012

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(07): 0-

li zhe, zhang wei, zhao wei, et al. Impact of injection noise on locked starting of fiber lasers[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

wang xiao-kun, wang li-hui, zheng li-gong, et al. Application of subaperture stitching technology to test of large and steep aspherical surface[J]. High Power Laser and Particle Beams, 2007, 19.

li zhe, zhang wei, zhao wei, et al. Impact of injection noise on locked starting of fiber lasers[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

wang xiao-kun, wang li-hui, zheng li-gong, et al. Application of subaperture stitching technology to test of large and steep aspherical surface[J]. High Power Laser and Particle Beams, 2007, 19.

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Application of subaperture stitching technology to test of large and steep aspherical surface

1.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
2.
Graduate University of Chinese Academy of Sciences,Beijing 100039,China

Publish Date: 2007-07-15

Abstract

Abstract

In order to test large aperture and high steep aspheric surfaces accurately during the grinding and polishing process, a new method combining the subaperture stitching and null compensation was proposed. The principle of the technique was introduced, and a reasonable splicing mathematical model was established. A steep, high order and off-axis aspheric mirror with a aperture of 400 mm×300 mm was tested with the method. The translation and misalignment errors were eliminated by the least-squares fitting and the phase data of the full aperture were obtained, and the surface map after stitching was consistent to the integrated surface map derived by null corrector. Moreover, the errors and accuracy of the experiment were analyzed.
- aspheric surface testing,
- subaperture stitching,
- null compensation,
- least-squares fitting,
- phase distribution

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