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Laser package having multiple emitters configured on a substrate member

  • US 9,595,813 B2
  • Filed: 01/23/2012
  • Issued: 03/14/2017
  • Est. Priority Date: 01/24/2011
  • Status: Active Grant
First Claim
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1. A laser device comprising:

  • a substrate containing gallium and nitrogen material, the substrate having a surface region characterized by a semipolar or nonpolar orientation, the substrate having a front edge and a back edge;

    one or more active regions positioned within the substrate;

    an array of N laser emitters overlaying the one or more active regions, N being greater than 3, the array of N laser emitters extending substantially from the front edge of the substrate to the back edge of the substrate, each of the N laser emitters being configured to emit a blue or green laser at the front edge of the substrate, the array of N laser emitters being characterized by an average operating power of at least 25 mW, each of the N laser emitters being characterized by a length and a width, the length being 400 um to 800 um, the width being 1 um to 3 um, and edges of each of the N laser emitters extending substantially parallel to one another along the entire length of the N laser emitters;

    a common n-side electrode coupled to a bottom side of the substrate;

    a common p-side electrode coupled to the array of N laser emitters, the common n-side electrode and the common p-side electrode electrically coupling the array of N laser emitters to one another in a parallel configuration;

    one or more optical members positioned at the front edge of the substrate for optically collimating radiation from the array of N laser emitters to provide a laser output having a spectral width of at least 4 nm and a total operating power of at least 0.5 W; and

    a heat sink thermally coupled to the first substrate.

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