Techniques for secure free space laser communications
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United States of America Patent
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Issued Date -
Dec 23, 2004
app pub date -
Jun 3, 2004
filing date -
Jun 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Techniques for establishing a free-space optical communications link between a local terminal and a remote terminal include determining that a remote terminal is within a wide field of view associated with a micromechanical mirror in a local terminal. The risk of an undesirable effect which imposes a performance or security problem is also determined to occur within the wide field of view. The micromechanical mirror is pointed by including the remote terminal within a narrow field of view that is narrower than the wide field of view, and by reducing the risk that the undesirable effect is within the narrow field of view.
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