Laser & Optoelectronics Progress, Volume. 56, Issue 2, 021202(2019)
Measurement of the Transmission Wavefront of a Large-Aperture Aspheric Lens Based on Computer-Generated Hologram
Figures & Tables(9)
Fig. 1. Optical path of a large-aperture aspheric lens detected by a refractive compensation mirror
Fig. 3. Schematic of optical paths between focus spot of the interferometer and planar mirror
Fig. 6. Measured transmission wavefront by using a CGH as a phase compensation element
Fig. 7. Measured transmission wavefront by using a refractive compensation lens as a phase compensation element
Table 1. Parameters of aspheric lens
View tableTable 1. Parameters of aspheric lens
Parameter Square aperture /(mm×mm) Curvature radius /mm Cone coefficient Two order coefficient /10-10 Center thickness /mm Value 410×410 -1899.75 -2.180721 -4.34 65
Table 2. Parameter of main and assistant CGHs
View tableTable 2. Parameter of main and assistant CGHs
CGH type Radial coordinate range /mm Etching depth /nm Duty-cycle Diffraction order Minimal pattern period /μm Main CGH 0-32.92 692 0.5 +1 17.85 Assistant CGH 36-42 70 0.5 +3 6.94
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Yuhang He, Qiang Li, Bo Gao, Xiaohong Wei, Liqun Chai. Measurement of the Transmission Wavefront of a Large-Aperture Aspheric Lens Based on Computer-Generated Hologram[J]. Laser & Optoelectronics Progress, 2019, 56(2): 021202
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: May. 29, 2018
Accepted: Jul. 26, 2018
Published Online: Aug. 1, 2019
The Author Email: He Yuhang (hang_yu_he@163.com)
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