Share Email Print
cover

Proceedings Paper • new

Fitting relationship between the beam quality β factor of high-energy laser and the wavefront aberration of laser beam
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The mathematical relation between the beam quality β factor of high-energy laser and the wavefront aberration of laser beam is important in beam quality control theory of the high-energy laser weapon system. In order to obtain this mathematical relation, numerical simulation is used in the research. Firstly, the Zernike representations of typically distorted atmospheric wavefront aberrations caused by the Kolmogoroff turbulence are generated. And then, the corresponding beam quality β factors of the different distorted wavefronts are calculated numerically through fast Fourier transform. Thus, the statistical distribution rule between the beam quality β factors of high-energy laser and the wavefront aberrations of the beam can be established by the calculated results. Finally, curve fitting method is chosen to establish the mathematical fitting relationship of these two parameters. And the result of the curve fitting shows that there is a quadratic curve relation between the beam quality β factor of high-energy laser and the wavefront aberration of laser beam. And in this paper, 3 fitting curves, in which the wavefront aberrations are consisted of Zernike Polynomials of 20, 36, 60 orders individually, are established to express the relationship between the beam quality β factor and atmospheric wavefront aberrations with different spatial frequency.

Paper Details

Date Published: 12 January 2018
PDF: 10 pages
Proc. SPIE 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 106190J (12 January 2018); doi: 10.1117/12.2294622
Show Author Affiliations
Zhong-Ye Ji, Beijing Institute of Technology (China)
Xiao-Fang Zhang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 10619:
2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X. Kärtner; Jayanta Kumar Sahu; Liquan Dong, Editor(s)

© SPIE. Terms of Use
Back to Top