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Proceedings Article

Large-Optics white light interferometer for laser wavefront test: apparatus and application

[+] Author Affiliations
Zhu Luan, Liren Liu, Lijuan Wang, De'an Liu

Shanghai Institute of Optics and Fine Mechanics (China)

Proc. SPIE 7091, Free-Space Laser Communications VIII, 70910Q (August 19, 2008); doi:10.1117/12.793515
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From Conference Volume 7091

  • Free-Space Laser Communications VIII
  • Arun K. Majumdar; Christopher C. Davis
  • San Diego, California, USA | August 10, 2008

abstract

There is transmitting optics of 250mm aperture with about 8 microradians in SILEX system. This is often large aperture and diffraction-limited laser beam in the laser communications. Large-Optics white light interferometer using double-shearing structure has been submitted to analysis the laser wavefront before. Six optical plates of 490 millimeters apertures are manufactured now one of which is also aperture-divided so that the precision of measured wave front is higher than the full aperture design. It is suitable for measurement of minimum diffraction-limited laser wave front and any wavelength. The interference is happened between equal optical path of the reflection and the other. The plates are the basic structures which are precisely parallel or perpendicular needed for either two plates. There are several tools equipped with the interferometer including white light test source and collimators and so on to confirm the precision of several seconds angle. The apparatus and application is explained in detail in this paper. The adjustment is important for the realization of white light test.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Zhu Luan ; Liren Liu ; Lijuan Wang and De'an Liu
"Large-Optics white light interferometer for laser wavefront test: apparatus and application", Proc. SPIE 7091, Free-Space Laser Communications VIII, 70910Q (August 19, 2008); doi:10.1117/12.793515; http://dx.doi.org/10.1117/12.793515


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