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Free-space optical signal switch arrangement

  • US 6,002,818 A
  • Filed: 12/05/1997
  • Issued: 12/14/1999
  • Est. Priority Date: 12/05/1997
  • Status: Expired due to Term
First Claim
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1. An N by M, where N and M>

  • 1, free-space optical signal switch arrangement comprisingN optical signal transmitters each for outputting an optical signal,M optical signal receivers each for receiving an optical signal,N controllable optical signal steering units, each steering unit only being associated with a transmitter, for receiving an optical signal from that transmitter and for controlling to which of the M receivers that optical signal is directed.

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