空间卫星光通信链路关键技术与方案的研究

Key Technology and Schemes of Optical Communication between GEO and LEO

光通信是解决低轨卫星与定点卫星间高码率通信瓶颈的最佳途径,其中高频调制速率、大功率光源技术是关键和难点.提出1550nm波段和800nm波段2种解决方案,并对两者进行了对比.在现有条件下,1550nm波段方案是低轨卫星与GEO卫星间高码率通信链路的优选方案.

Optical space communication is the best way to overcome the bottleneck in the high speed communication between low earth orbit (LEO) and geostationary earth orbit (GEO) satellites. The key techniques and difficulties in optical space communication are high date rates and high power lamphouse technology. Two schemes are proposed for the communication, one using 1 550 nm band and the other taking 800 nm band. It is suggested that the scheme using 1 550 nm band be preferable with the available technologies.