Vertical cavity surface emitting laser device
AssigneeCanon Kabushiki Kaisha
InventorsTatsuro Uchida, Yuichiro Hori, Mamoru Uchida, Kohei Okamoto, Yasuhiro Nagatomo
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Abstract
A vertical cavity surface emitting laser device includes a first reflective mirror layer, a second reflective mirror layer, and an active layer disposed therebetween, wherein at least one of the first reflective mirror layer and the second reflective mirror layer includes a periodic-refractive-index structure in which the refractive index periodically changes in the in-plane direction and a part of the periodic-refractive-index structure includes a plurality of parts that disorder the periodicity.
Claims17
A vertical cavity surface emitting laser device comprising:
- a first reflective mirror;
- a second reflective mirror having a periodic-refractive-index structure in which the refractive index periodically changes in the in-plane direction of a plane opposing the first reflective mirror;
- and
- an active layer disposed between the first reflective mirror and the second reflective mirror,
- wherein the periodic-refractive-index structure includes a plurality of parts that disorder the periodicity of the periodic-refractive-index structure of the second reflective mirror,
- wherein the periodic-refractive-index structure in the second reflective mirror comprises a first layer and a second layer,
- wherein the refractive index in the first layer periodically changes in the in-plane direction, and
- wherein the second layer includes parts that disorder the periodicity of the periodic-refractive-index structure.
A vertical cavity surface emitting laser device comprising:
- a substrate;
- a first reflective mirror;
- an active layer;
- and
- a second reflective mirror,
- the first reflective mirror, the active layer, and the second reflective mirror being provided on the substrate,
- wherein the first reflective mirror and the second reflective mirror comprise a two-dimensional periodic-refractive-index structure, and
- the laser device emits light in a single transverse mode.
Dependencies are inferred from the claim text.