Present and future of optical intersatellite communication research at the National Space Development Agency of Japan (NASDA)

We report our research results of system trial fabrication and tests as the first step of Optical Intersatellite Communication research. Second, the results of the Optical Inter-orbit Communications Engineering Test Satellite (OICETS) feasibility study are reported. Last, we describe the draft results of a conceptual study of a future optical communications system that will be needed as space infrastructure.