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Proceedings Paper

Large-Optics white light interferometer for laser wavefront test: apparatus and application
Author(s): Zhu Luan; Liren Liu; Lijuan Wang; De'an Liu
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Paper 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.

Paper Details

Date Published: 19 August 2008
PDF: 7 pages
Proc. SPIE 7091, Free-Space Laser Communications VIII, 70910Q (19 August 2008); doi: 10.1117/12.793515
Show Author Affiliations
Zhu Luan, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Lijuan Wang, Shanghai Institute of Optics and Fine Mechanics (China)
De'an Liu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 7091:
Free-Space Laser Communications VIII
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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