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Semi-conductor laser unit

  • US 5,177,753 A
  • Filed: 06/14/1991
  • Issued: 01/05/1993
  • Est. Priority Date: 06/14/1990
  • Status: Expired due to Fees
First Claim
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1. A semi-conductor laser unit comprising:

  • a substrate;

    a laser chip bonded on said substrate through a sub-mount so as to project a laser beam towards the outside from a front cleavage face of said laser chip, said front cleavage face of said laser chip being covered by a transparent resin material, with a front face of said transparent resin material being formed into a smooth face; and

    a light receiving element formed on said sub-mount so as to receive a laser light beam emitted from a rear cleavage face of said laser chip, said rear cleavage face and the upper surface of said light receiving element being connected by a solid state waveguide member.

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