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US 2019/0131761 A1Published application
Semiconductor light-emitting device and optical device
AssigneesFujitsu Limited, Photonics Electronics Technology Research Association
InventorNobuaki Hatori
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Abstract
A semiconductor light-emitting device includes an active layer including quantum dots, a diffraction grating, a low-reflectance film disposed at a light-emitting end of the active layer, and a high-reflectance film disposed at another end of the active layer and having an optical reflectance higher than an optical reflectance of the low-reflectance film.
Claims12
A semiconductor light-emitting device, comprising:
- an active layer including quantum dots;
- a diffraction grating;
- a low-reflectance film disposed at a light-emitting end of the active layer;
- and
- a high-reflectance film disposed at another end of the active layer and having an optical reflectance higher than an optical reflectance of the low-reflectance film.
2 more elements
An optical device, comprising:
- a semiconductor light-emitting device;
- an optical modulator that modulates light emitted from the semiconductor light-emitting device;
- and
- an emitter that emits light received from the optical modulator,
- wherein the semiconductor light-emitting device includes
- an active layer including quantum dots,
- a diffraction grating,
- a low-reflectance film disposed at a light-emitting end of the active layer, and
- a high-reflectance film disposed at another end of the active layer and having an optical reflectance higher than an optical reflectance of the low-reflectance film.
6 more elements
Dependencies are inferred from the claim text.