Method and system of tracking optical beam shift

Details Method and system of tracking optical beam shift Method and system of tracking optical beam shift

2007-10-17

2010-11-16

Pascal, Leslie (Department: 2613)

Optical communications

Optical communication over freee space

Transmitter and receiver

C398S129000, C398S164000, C398S209000, C398S213000

Reexamination Certificate

active

07835647

ABSTRACT:
An optical interconnect includes an optical transmitter having a plurality of optical sources; a light sensing array configured to receive optical beams emitted from the optical sources; and a beam tracking module in communication with the light sensing array. The beam tracking module is configured to calculate a displacement of at least one of the optical beams by extrapolating an extremum from cross-correlation data obtained between at least a portion of a sample reading from the light sensing array and at least a portion of a plurality of shifted versions of a reference reading from the light sensing array. A related method includes calculating a displacement of an optical beam by extrapolating an extremum from cross-correlation data obtained between a sample reading of the optical beam and at least a portion of a plurality of shifted versions of a reference reading from the light sensing array.

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HPDC, “Method and System of Tracking Optical Beam Shift”, Internat'l Search Report for PCT/US2008/011823, filed Oct. 15, 2008. Report issued in Korean Intellectual Property Office, Apr. 2, 2009.

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