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Proceedings Paper

Numerical analysis of the scaling parameter of adaptive compensation for thermal blooming effects
Author(s): Yinbo Huang; Yingjian Wang; Zhiben Gong
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Paper Abstract

By using the time-dependent propagation computer code, adaptive compensation for thermal blooming effects, which are induced by collimated high-energy laser (HEL) beam propagation through the atmosphere, is numerically calculated and analyzed under different conditions. The numerical results show that, with the definite adaptive optics (AO) system, the scaling parameter NJY'NFB is available to evaluate the effect of adaptive compensation efficiently. Moreover, we get the scaling relation between the scaling parameter ND/NFB and the far-field Strehi ratio, which is can be described by Strehl=1/[1+AND/NFB+B (ND/NFB) C] where A, B and C are fitting parameters. We also get the threshold of adaptive phase compensation instability (PCI) through analysis ofthe scaling relation above. In addition, we discuss the difference between adaptive compensation and whole-beam compensation.

Paper Details

Date Published: 5 September 2002
PDF: 4 pages
Proc. SPIE 4926, Adaptive Optics and Applications II, (5 September 2002); doi: 10.1117/12.481684
Show Author Affiliations
Yinbo Huang, Anhui Institute of Optics and Fine Mechanics (China)
Yingjian Wang, Anhui Institute of Optics and Fine Mechanics (China)
Zhiben Gong, Anhui Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 4926:
Adaptive Optics and Applications II
Wenhan Jiang; Robert K. Tyson, Editor(s)

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