Research and primary results of SLR experiment with 1064nm wavelength using Si detector

SLR (Satellite Laser Ranging) is the common satellite observation technology with the highest single shot precision. The 532nm wavelength laser signal derived from 1064nm wavelength laser system is generally adopted to laser measurement to satellites. The 1064nm wavelength laser signal has better performances than 532nm ones in atmospheric attenuation, photon number, laser power, development and price, and so on, which is beneficial to enhance the detection ability of measuring system, and carry out the goal of weak signal detection. In this paper, the relevant techniques are presented in building up SLR system with 1064nm wavelength, and the corresponding solutions are put forward. With these techniques, the 1064nm wavelength high precise SLR measurement was successfully carried out by using si-detector for the first time in Shanghai Astronomical Observatory (SHAO) and the experimental foundations have been laid for the further development and applications in the field of far distance and weak signal space targets observation.