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Optical Engineering

Demonstration of state-locked control of tiled system
Author(s): Yuchuan Yang; Xiao Wang; Junwei Zhang; Fuquan Li; Xiaojun Huang; Feng Jing; Hui Luo
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Paper Abstract

The stability of phased-array optics is a crucial issue for far-field focal-spot quality. The tiled approach of phasing optical elements is a widely used technique. Here it is adopted to maintain the long-time stability of a tiled system by a proportional-integral-differential (PID) algorithm. Experimental data is taken with 2×1 tiled-flat square mirrors driven by 3-axis piezoelectric actuators. The feedback frequency is over 80 Hz and the displacement error is below 4 nm. The optical measurement results show that the state-locked operation is continuously maintained for hour-long periods in PID control mode.

Paper Details

Date Published: 1 September 2011
PDF: 7 pages
Opt. Eng. 50(9) 093601 doi: 10.1117/1.3615648
Published in: Optical Engineering Volume 50, Issue 9
Show Author Affiliations
Yuchuan Yang, National Univ. of Defense Technology (China)
Xiao Wang, China Academy of Engineering Physics (China)
Junwei Zhang, China Academy of Engineering Physics (China)
Fuquan Li, China Academy of Engineering Physics (China)
Xiaojun Huang, China Academy of Engineering Physics (China)
Feng Jing, China Academy of Engineering Physics (China)
Hui Luo, National Univ. of Defense Technology (China)


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