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Laser communication device

  • US 5,801,866 A
  • Filed: 06/21/1996
  • Issued: 09/01/1998
  • Est. Priority Date: 08/27/1992
  • Status: Expired due to Term
First Claim
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1. A laser communication transceiver for transmitting information via laser beams to another laser communication transceiver and for receiving information via laser beams from said another laser communication transceiver, said transceiver comprising:

  • A) a laser transmitter system comprising;

    1) at least one laser operable to produce a signal laser beam of a selected range of wavelengths;

    2) a signal modulator disposed relative to said laser and configured to modulate said signal laser beam to impose a digital communication signal on said signal laser beam;

    B) a laser receiver disposed relative to said laser transmitter system and configured to receive a laser beam having a selected range of wavelengths from said another laser communication transceiver comprising;

    1) an optical filter closely matched to at least one wavelength of said received laser beam,2) a signal detector operable to receive and detect communication signals that are transmitted by said another laser communication transceiver through said optical filter;

    C) a telescopic viewing device operable to locate said another similar laser communication transceiver and to facilitate pointing said transceiver in a direction of said another laser communication transceiver; and

    D) a laser ranging unit, a GPS unit and an electronic compass.

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