Fig. 1. Photon detected at different positions in the laser pulse

Fig. 2. The schematic of optical system for high power solid-state laser with 200Hz repetition rate

Fig. 3. Laser ranging results of space debris at Shanghai Laser Ranging Station in 2013~2015 year

Fig. 4. Space debris with ID of 38346 laser ranging at repetition of 1 kHz

Fig. 5. Satellite laser ranging with ultra-high repetition rate of 500 kHz

Fig. 6. Laser emission and single photon detector reception to avoid the laser back-scatter

Fig. 7. Space debris laser ranging with RCS of 0.05 m² (ID: 01520)

Fig. 8. Space debris laser ranging at a distance of more than 6 700 km (ID: 28118)

Fig. 9. Laser ranging system for single-station laser emission and multi-station echo signal reception

Fig. 10. European multi-telescope space debris laser ranging (Graz; Zimmerwald: 600 km; Wettzell: 400 km; Herstmonceux: 1 200 km)