Yunbo Bai, You Zhou, Shijie Liu, Jianda Shao, Longbo Xu. Splicing Detection Technique of Homogeneity of Large-Aperture Laser Neodymium Glass[J]. Acta Optica Sinica, 2018, 38(9): 0912004
- Acta Optica Sinica
- Vol. 38, Issue 9, 0912004 (2018)
![Schematic of two sub-aperture splicing[7]](/richHtml/gxxb/2018/38/9/0912004/img_1.jpg)
Fig. 1. Schematic of two sub-aperture splicing[7]
Fig. 2. Schematic of sub-aperture distribution
Fig. 3. Schematic of detection device of optical homogeneity
Fig. 4. Raw wavefront
Fig. 5. Pixel displacement versus RMS difference of wavefront
Fig. 6. Mechanical design diagram of air-float guide
Fig. 7. Physical picture of splicing detection device
Fig. 8. Homogeneity measurement results of 400 mm×400 mm fused quartz. (a) Direct measurement; (b) local comparison; (c) splicing measurement
Fig. 9. Homogeneity measurement results of 810 mm×460 mm laser neodymium glass
Fig. 10. Homogeneous feature distributions of single aperture and same region after splicing
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Table 1. Comparison of measurement results of single aperture and same region after splicing
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