Phase-coupled laser assembly and method for producing a phase-coupled laser assembly
AssigneeOSRAM OLED GmbH
InventorsBruno Jentzsch, Alexander Behres, Hans-Jürgen Lugauer
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Abstract
A laser device is provided which comprises a common waveguide layer and a plurality of laser bodies, wherein each of the laser bodies has an active region configured for generating coherent electromagnetic radiation. The laser bodies are arranged side by side on the common waveguide layer, wherein the laser bodies are directly adjacent to the common waveguide layer. In particular, the laser bodies are configured to be phase-coupled to each other via the waveguide layer during operation of the laser device. Furthermore, a method for producing such a phase-coupled laser device is provided.
Claims18
A laser device comprising a common waveguide layer and a plurality of laser bodies, wherein
- the laser bodies each comprise an active zone configured to generate coherent electromagnetic radiation,
- the laser bodies are arranged side by side on the common waveguide layer,
- the laser bodies are directly adjacent to the common waveguide layer,
- the laser bodies are phase-coupled to each other via the waveguide layer during operation of the laser device, and
- the laser device further comprises a first electrode, a third electrode, and a second electrode disposed between the first electrode and the third electrode, wherein
- the first electrode and the third electrode are assigned to a first electrical polarity of the laser device,
- the second electrode is assigned to a second electrical polarity different from the first electrical polarity,
- the first electrode and the second electrode are configured for electrically contacting the laser bodies, and
- the second electrode and the third electrode are configured for electrically contacting the common waveguide layer.
A laser device comprising:
- a common waveguide layer;
- and
- a plurality of laser bodies, wherein
- the laser bodies each comprise an active zone configured to generate coherent electromagnetic radiation,
- the laser bodies are arranged side by side on the common waveguide layer,
- the laser bodies are directly adjacent to the common waveguide layer,
- the laser bodies are phase-coupled to each other via the waveguide layer during operation of the laser device,
- wherein the waveguide layer comprises a first sublayer, a second sublayer and an active region arranged therebetween, the active region being located in the coupling path of the waveguide layer,
- the common waveguide comprising an active region, the active region being formed as an active quantum well layer of a Wannier-Stark modulator which, during operation of the laser device, brings about a change in a refractive index of the common waveguide layer as a result of an applied electric field.
A laser device comprising a common waveguide layer, a plurality of laser bodies and a common carrier, wherein
- the plurality of laser bodies each comprise an active zone configured to generate coherent electromagnetic radiation,
- the plurality of laser bodies are arranged side by side on the common waveguide layer,
- the plurality of laser bodies are directly adjacent to the common waveguide layer,
- the plurality of laser bodies are phase-coupled to each other via the waveguide layer during operation of the laser device,
- the common waveguide layer is located in the vertical direction between the common carrier and the plurality of laser bodies, and
- the common waveguide layer comprises a first sublayer, a second sublayer, and an active region arranged therebetween, the active region being located in a coupling path of the waveguide layer.
Dependencies are inferred from the claim text.