Holographic optical satellite communication system

Details Holographic optical satellite communication system Holographic optical satellite communication system

G - Physics

02

B

325/1, 88/0.14

G02B 5/32 (2006.01) H01Q 19/06 (2006.01) H04B 10/10 (2006.01) H04B 10/105 (2006.01)

Patent

CA 1097108

HOLOGRAPHIC OPTICAL SATELLITE COMMUNICATION SYSTEM ABSTRACT In a satellite communication system using optical carriers the down link radiation beam pattern should illuminate only the receiver sites for power economy. Therefore the transmitting laser's beam pattern is shaped in such a way that the intensity distribution at the earth surface is adapted to the geographical distribution of the receiving stations. A suitably prepared holo- gram or set of stacked holograms storing different beam patterns is interposed in the radiation path. For varying the antenna char- acteristic a particular hologram is selected by changing the beam angle of incidence by remote control. SZ9-77-001

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