Adaptive optical system compensating for phase fluctuations

Details Adaptive optical system compensating for phase fluctuations Adaptive optical system compensating for phase fluctuations

2007-10-16

2007-10-16

Singh, Dalzid (Department: 2613)

Optical communications

Optical communication over freee space

Compensation

C398S120000, C398S123000

Reexamination Certificate

active

10759509

ABSTRACT:
A method and apparatus for compensating for phase fluctuations incurred by an optical beam travelling through free space, especially a turbulent atmosphere. A transmitting station transmits a plurality of uniquely tagged optical beams through free space. The plurality of uniquely tagged optical beams are received at a receiving station, where a parameter of each uniquely tagged optical beam is quantified. Information associated with the quantified parameter for each uniquely tagged optical beam is then sent back to the transmitting station via a wireless feedback link. Using the information, the transmitting station adjusts at least one uniquely tagged optical beam to compensate for phase fluctuations.

REFERENCES:
patent: 5475520 (1995-12-01), Wissinger
patent: 6400871 (2002-06-01), Minden
patent: 2002/0153497 (2002-10-01), Pepper et al.
patent: 2003/0001073 (2003-01-01), Presby et al.
patent: 2004/0156638 (2004-08-01), Graves et al.
patent: 1 271 806 (2003-01-01), None
patent: 02/084902 (2002-10-01), None

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