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Surface emitting laser element and optical device

  • US 10,224,692 B2
  • Filed: 12/05/2017
  • Issued: 03/05/2019
  • Est. Priority Date: 01/12/2017
  • Status: Active Grant
First Claim
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1. A surface emitting laser element, comprising:

  • a first distribution Bragg reflector (DBR) layer having a first conductivity type;

    a second DBR layer having a second conductivity type opposite to the first conductivity type;

    an active layer located between the first DBR layer and the second DBR layer;

    an insulating layer formed over the second DBR layer; and

    a surface conductive layer formed over the insulating layer,wherein a first opening, which exposes the insulating layer and overlaps with the active layer when viewed in a thickness direction of the first DBR layer, is formed in the surface conductive layer, and the first opening extends and has an annular shape when viewed in the thickness direction,wherein an additional opening, which exposes the insulating layer and overlaps with the active layer when viewed in the thickness direction of the first DBR layer, is formed in the surface conductive layer, and the additional opening has an annular shape and is connected to the first opening.

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