| CPC G02B 6/1228 (2013.01) | 20 Claims |
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1. A structure for an optical coupler, the structure comprising:
a first waveguide core including a first tapered section, the first waveguide core comprising a first passive material;
a second waveguide core including a second tapered section overlapped with the first tapered section, the second waveguide core comprising a second passive material; and
a semiconductor laser including a layer stack that has a plurality of layers, the layer stack including a third tapered section overlapped with the second tapered section, and each of the plurality of layers comprising a III-V compound semiconductor material.
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