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Optical memory device incorporating photodetector devices and light emitting devices

  • US 5,717,627 A
  • Filed: 01/30/1997
  • Issued: 02/10/1998
  • Est. Priority Date: 02/02/1996
  • Status: Expired due to Fees
First Claim
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1. An optical memory device comprising:

  • a first photodetector device for receiving an optical signal;

    a first light-emitting device, connected to said first photodetector device in series, for emitting light responsive to a current from said first photodetector device, said first light-emitting device being disposed such that a part of the light emitted therefrom is fed back to said first photodetector device;

    a first device, connected to said first light-emitting device, having a resistance value higher than an internal resistance of said first light-emitting device;

    a second device, connected to said first photodetector device, having a resistance value higher than an internal resistance of said first photodetector devicea second photodetector device, connected to said first photodetector device in parallel; and

    a second light-emitting device connected to said first light-emitting device in series.

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