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Laser diode system for cutting off the environment from the laser diode

  • US 5,226,052 A
  • Filed: 09/10/1992
  • Issued: 07/06/1993
  • Est. Priority Date: 05/08/1990
  • Status: Expired due to Term
First Claim
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1. A laser diode system comprising:

  • a substrate;

    a sub-mount disposed on a portion of said substrate;

    a laser diode chip bonded on said sub-mount; and

    a monitor element formed on said sub-mount so as to monitor laser light emitted from a rear cleavage face of said laser diode chip, said laser diode chip being covered by a transparent resin layer having resistance against humidity to form solid state waveguide means connecting said rear cleavage face and said monitor element and a protective layer covering said solid state waveguide means for directing laser light emitted from said rear cleavage face to said monitor element.

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