Optical atmospheric link system

Details Optical atmospheric link system Optical atmospheric link system

1993-06-29

1995-09-05

Moore, David K.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359169, 359172, H04B 1000

Patent

active

054483913

ABSTRACT:
An optical atmospheric link device which is adapted to quickly correct the incident position of a light beam with high follow-up accuracy. Incident position detection signals are generated by an optical beam incident position detector in correspondence to the incident position of a first optical beam. The incident position detection signal along with a reference incidence position signal, are utilized to generate incident position correcting signal. The incident position correcting is utilized to move a lens to quickly correct the incident position in a small amplitude mode. Furthermore, a displacement detection signal is generated which corresponds to the displacement of the lens. The displacement detection signal and the incident position correcting signal are utilized to move a pair of mirrors to slowly correct the incident position in a large amplitude mode.

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W. Auer, "Pointing, Acquistion and Tracking for Intersatellite Optical Data Links," Proc. ESA Workshop on Spacer Laser, Applications and Technology, Les Diablerets, Mar. 1984, pp. 131-136 and 2 figures.

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