Method for optical telecommunication between satellites

A method for accurately transmitting light signals of different wavelengths ( lambda s1, lambda s2... lambda sn, lambda e1, lambda e2... lambda en) between satellites consists in that all light signals to be transmitted from a satellite are fed (coupled) into an optical waveguide (L), that the light signals leaving the optical waveguide (L) are then aligned with a collimator (K) and are fed from there as a common light beam to a secondary mirror (FS). The secondary mirror deflects the light beam onto a reflector (R), from where the light beam is emitted to another satellite. A light beam which is received by the same reflector (R) is reflected onto the secondary mirror (FS), from where the received light beam is deflected onto a collimator (K). The light beam is then coupled into an optical waveguide (L) by the collimator (K), and the light signals contained in the light beam are finally coupled out of the optical waveguide (L) in a wavelength-selective manner (Fig. 1).