Abstract
A mini adaptive optics system is developed in which a micro-machined membrane deformable mirror and the technique of cross-folded optical path are employed. The system has a volume of 30x20x 10cm3, a weight of 4kg, while its bandwidth is 1 7Hz, and the accuracy of its wave-front sensor is X/1 5 mis. The system is aimed at improving the image quality of space-based optical systems, but it is versatile. The control host is a PC computer, and various functions are realized, such as, real time display of image or wave-front, testing of the response matrix of the deformable mirror, and closed-loop control. An experimental system is also setup to test the performance ofthe AO system. The results of the experiments show that the AO system is very effective in compensation for thermal deformations and dynamic disturbances.
| Original language | English |
|---|---|
| Pages (from-to) | 7-12 |
| Number of pages | 6 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4926 |
| DOIs | |
| Publication status | Published - 5 Sept 2002 |
| Externally published | Yes |
| Event | Adaptive Optics and Applications II 2002 - Shanghai, China Duration: 14 Oct 2002 → 18 Oct 2002 |
Keywords
- Adaptive optics
- Deformable mirror
- Dsp
- Thermal distortion
- Wave-front sensor