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Proceedings Paper

Rayleigh laser guide stars in multiconjugate correction
Author(s): Jixiang Yan; Yu Xin; Changning Zhou
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Paper Abstract

Recently, the progress in adaptive optics makes the cone effect of Rayleigh laser guide stars be solved fairly. So that the applications of this kind of beacon in adaptive optics, especially in multiconjugate adaptive optics (MCAO) presents a bright future once again. The photon flux density required by the wavefront sensor of MCAO with certain performance is proportional to the number of layers. This results in that the laser energy required by guide stars for "classical" MCAO is very high. In the "new concept" MCAO, however, the Rayleigh beacons are formed by light scattered from whole higher atmosphere but not only a selected thin layer. Then the required laser energy degrades greatly.

Paper Details

Date Published: 25 October 2004
PDF: 8 pages
Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.549405
Show Author Affiliations
Jixiang Yan, Beijing Institute of Technology (China)
Yu Xin, Beijing Institute of Technology (China)
Changning Zhou, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 5490:
Advancements in Adaptive Optics
Domenico Bonaccini Calia; Brent L. Ellerbroek; Roberto Ragazzoni, Editor(s)

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