ＭＨＩ: Optical data relay satellite launch: Laser Communication System
SpaceX: “Starlink” cannot start this year: Beta test postponed
ANAHD: space avatar debuts on ISS: by ANAHD and JAXA
JAXA: Demonstration of optical satellite communication (LUCAS): Wavelength 1.5 µm, laser light
Tokyo Institute of Technology: JAXA / Small satellite No. 3 equipped with radio: 5G / Phased array