Point-ahead demonstration of a transmitting antenna for satellite quantum communication

A low-divergence beam is an essential prerequisite for a high-efficiency long-distance optical link, particularly for satellite-based quantum communication. A point-ahead angle, caused by satellite motion, is always several times larger than the divergence angle of the signal beam. We design a ...

Source: Optics Express - June 19, 2018 Category: Physics Authors: Xuan Han Hai-Lin Yong Ping Xu Wei-Yang Wang Kui-Xing Yang Hua-Jian Xue Wen-Qi Cai Ji-Gang Ren Cheng-Zhi Peng Jian-Wei Pan Source Type: research