Method and apparatus for tracking alignment in wireless optical

Details Method and apparatus for tracking alignment in wireless optical Method and apparatus for tracking alignment in wireless optical

1997-01-30

1999-09-14

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

H04B 1010

Patent

active

059531460

ABSTRACT:
An optical communication system and methods are disclosed wherein the receiving source uses an array sensor to recover data from a transmitted optical beam and to evaluate alignment accuracy with the transmitted beam. The array sensor uses the principles of geometric invariance to determine the accuracy of alignment. The sensor may relay the recovered information to a system controller or other suitable device, which can then reposition the receiver so that it is properly aligned with the transmitter. The system and methods advantageously provide for a more compact and robust communication system wherein a single receiving element can be used for both data recovery and alignment evaluation functions.

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