Fig. 1. Optical signal reception with or without adaptive optics (AO) system

Fig. 2. Schematic diagram of AO system of OPALS ground station^[20]

Fig. 3. Experimental results of AO system in open and closed^[20]

Fig. 4. Optical ground station with 1 m aperture at California

Fig. 5. Structure of optical machine at receiver of optical ground station^[23]

Fig. 6. ESA's optical ground station with 1 m aperture at Tenerife

Fig. 7. Pictures of transportable adaptive optics ground station (TAOGS)^[29]

Fig. 8. AO system of TAOGS^[30]

Fig. 9. Top view of optical platform design of CARO^[33]

Fig. 10. Optical feeder link AO precorrection experiment^[16]. (a) FEEDELIO breadboard; (b) schematic overview of FEEDELIO

Fig. 11. Demonstration of FEEDELIO experiment

Fig. 12. 137-element AO system

Fig. 13. Error test results with or without AO system. (a) Tracking errors; (b) wavefront distortion; (c) bit error rate

Fig. 14. 1.8 m-optical ground station in Lijiang

Fig. 15. Compensation results with AO. (a) Tracking accuracy; (b) wavefront distortion; (c) coupling power

Fig. 16. Test results of 101-element short wave infrared AO system. (a) Wavefront; (b) average received power