Abstract
The stability of phased-array optics is a crucial issue for farfield 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 hourlong periods in PID control mode.
| Original language | English |
|---|---|
| Article number | 093601 |
| Journal | Optical Engineering |
| Volume | 50 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2011 |
| Externally published | Yes |
Keywords
- Proportional-integral-differential algorithm
- Statelocked control
- Tiled apertures
Fingerprint
Dive into the research topics of 'Demonstration of state-locked control of tiled system'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver