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Radial shearing interferometer optical system design and research

Author: JiangZhuo
Tutor: HeYong
School: Nanjing University of Technology and Engineering
Course: Optical Engineering
Keywords: Radial Shearing Interferometry Optical Design Imaging Systems Optical adjustment
CLC: TH744.3
Type: Master's thesis
Year: 2011
Downloads: 163
Quote: 2
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Abstract


Wavefront aberrations are high-energy pulsed laser wavefront measurement of the important parameters . In order to better measure the transient , pulsed laser wave front , the paper uses the method of radial shearing interferometer designed a cyclic radial shearing interferometer system . With a common path , no additional set the reference surface can be carried out only single interferogram wavefront detection , testing precision. In this thesis, the radial shearing interferometry system mainly includes the Galileo telescope system , three flat shearing interferometer systems, imaging systems and collimated beam expanding system . Near-infrared wavelengths to meet the testing requirements designed 632.8nm/1064nm dual wavelength radial shearing interferometer system to solve the near-infrared wavelengths debug difficult problems. To meet the system requirements of the test aperture , zoom imaging system designed to meet the system can be tested within φ4mm-φ18mm any spot of a laser beam wavefront requirements. According to project technical requirements , using Zemax optical design software on the system architecture design, simulation analysis of system accuracy and the system for tolerance analysis , after processing alignment accuracy can be achieved after the PV system is λ/10, to meet the system design accuracy requirements. Construction of the standard plane wave system for radial shearing interferometer system was tested research and use ZYGO interferometer light source were compared with similar results obtained . Verify the accuracy of the system , PV values ??were less than λ/10 and good reproducibility . Prove radial shearing interferometer wavefront has good resilience and high precision .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Optical instruments > Physical optical instruments > Interferometer
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