고 에너지 레이저 빔 파면 보정장치의 안정도 향상을 위한 연구
A Study on Stability Improvement of High Energy Laser Beam Wavefront Correction System
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The adaptive optics for compensating for optical wavefront distortion due to atmospheric turbulence has recently been used in systems that improve beam quality by eliminating the aberrations of high power laser beam wavefront. However, unseen-mode, which can not be measured in the wavefront sensor, increases the instability of the laser beam wavefront compensator on the adaptive optics system. As a method for improving such instability, a mathematical method for limiting the number of singular values is used when generating the command matrix involved in generation of the drive command of the wavefront compensator. In the past, however, we have relied solely on experimental methods to determine the limiting range of the singular values. In this paper, we propose a criterion for determining the limiting range of the singular values using the driving characteristics and the correlation technique of the wavefront compensator's actuators and have proved its performance experimentally.
Abstract
The adaptive optics for compensating for optical wavefront distortion due to atmospheric turbulence has recently been used in systems that improve beam quality by eliminating the aberrations of high power laser beam wavefront. However, unseen-mode, which can not be measured in the wavefront sensor, increases the instability of the laser beam wavefront compensator on the adaptive optics system. As a method for improving such instability, a mathematical method for limiting the number of singular values is used when generating the command matrix involved in generation of the drive command of the wavefront compensator. In the past, however, we have relied solely on experimental methods to determine the limiting range of the singular values. In this paper, we propose a criterion for determining the limiting range of the singular values using the driving characteristics and the correlation technique of the wavefront compensator's actuators and have proved its performance experimentally.
참고문헌 (16)
- K. Bush, "Electrostatic Membrane Deformable Mirror Wavefront Control Systems: Design and Analysis", Proc. of Advanced Wavefront Control: Methods, Devices, and Applications II, 5553, pp.28~38 (2004)
- E. J. Fernandez, "Adaptive optics with a magnetic deformable mirror: applications in the human eye", Optics Express, 14(20), pp.8900~8917 (2006)[DOI]
- V. Kmetik, "Development of large aperture elements for active and adaptive optics", Proc. of EPJ Web of Conferences, 48 (2013)
- K. L. Wlodarczyk, "Scalable stacked array piezoelectric deformable mirror for astronomy and laser processing applications", Review of Scientific Instruments, 85(2), pp.024502_1~024502_9 (2014)
- Dynamic Spatial Filtering of Deformable Mirror Commands For Mitigation of the Waffle Mode, "K. P. Vitayaudom", Air Force Research Laboratory, ~ (2009)
- N. D. Engstrom, "Misregistration in adaptive optics system", Proc. of Advanced Wavefront Control: Methods, Devices, and Applications VII, 7466 (2009)
- Y. W. Lee, "A study on the subset averaged median methods for gaussian noise reduction", The Korea Society of Computer and Information, 4(2), pp.120~134 (1999)
- L. A. Poyneer, "Wavefront control for extreme adaptive optics", Proc. of Astronomical Adaptive Optics Systems and Applications, 5169 (2003)
- L. A. Poyneer, "Optimal modal Fourier-transform wavefront control", J. Opt. Soc. Am. A, 22(8), pp.1515~1526 (2005)[DOI]
- F. U. Dowla, "Fast Fourier and wavelet transforms for wavefront reconstruction in adaptive optics", Proc. of High-Resolution Wavefront Control: Methods, Devices, and Applications II, 4124 (2000)
- 양형규, "이미지 상관관계함수를 이용한 디지털 영상의 유사도 비교에 관한 연구", 한국컴퓨터정보학회논문지, 14(3), pp.75~82 (2009), 한국컴퓨터정보학회
- R. H. Hudgin, "Wave-front Reconstruction for compensated Imaging", J. Opt. Soc. Am., 67(3), pp.375~378 (1977)[DOI]
- D. L. Fried, "Least-Squares Fitting a Wave-front Distortion Estimate to an Array of Phase - Difference Measurements", J. Opt. Soc. Am., 67(3), pp.370~375 (1977)[DOI]
- J. Herrmann, "Least-Squrares WaveFront Errors of Minimum Norm", J. Opt. Soc. Am., 70(1), pp.28~35 (1980)[DOI]
- L. E. Schmutz, "Hartmann sensing at AOA", Proc. of Electromechanical System Interaction with Optical Design, 0779 (1987)
- P. S. Davila, "Hartmann wavefront sensing of the corrective optics for the Hubble space telescope", Proc. of Instrumentation in Astronomy VIII, 2198 (1994)