Laser light source for a vehicle
The present invention is directed to a laser light source for a vehicle.
1. A light apparatus for a vehicle, the apparatus comprising:
a housing to be configured to the vehicle;
an edge emitting laser diode device coupled to the housing, the edge emitting laser diode device comprising a gallium and nitrogen containing material, the edge emitting laser diode device comprising:
an n-cladding layer with a thickness from 100 nm to 5000 nm and a Si doping level of 1E17 to 3E18 cm-3;
an n-side separate confinement heterostructure (SCH) layer comprised of InGaN having a molar fraction of In of between 3% and 10% and a thickness from 20 nm to 100 nm;
multiple quantum well active region layers comprised of at least two InGaN quantum wells each having a thickness from 2 nm to 8.5 nm and separated by GaN barriers having a thickness from 2.5 nm to 8 nm;
a p-cladding layer with a thickness from 400 nm to 1000 nm with Mg doping level of 2E17 to 2E19 cm-3;
a p++-GaN contact layer with a thickness from 20 nm to 40 nm with Mg doping level of 1E19 to 1E21 cm-3; and
a non-polar or semipolar configuration characterizing the gallium and nitrogen containing material;
an optical component coupled to an output laser beam of the edge emitting laser diode device;
a phosphor material coupled to the edge emitting laser diode device to be excited by a laser beam from the edge emitting laser diode device; and
a substantially white light output from the edge emitting laser diode device.
2. The apparatus of claim 1 wherein the substantially white light output is provided in a projection system.
3. The apparatus of claim 1 wherein the phosphor material is selected from at least one of a red phosphor, a green phosphor, or a blue phosphor.
4. The apparatus of claim 1 further comprising a reflector coupled to an output of the edge emitting laser diode device.
5. The apparatus of claim 1 wherein the edge emitting laser diode device is a plurality of edge emitting laser diode devices.
6. The apparatus of claim 1 further comprising a controller coupled to the light apparatus.
7. The apparatus of claim 1 further comprising a reflector coupled to an output of the edge emitting laser diode device and a controller coupled to the light apparatus.
8. The apparatus of claim 1 wherein the optical component comprises a waveguide coupled to the edge emitting laser diode device.
9. The apparatus of claim 1 further comprising a controller coupled to the light apparatus; and a reflector coupled to an output of the edge emitting laser diode device; and wherein the optical component comprises a waveguide coupled to the edge emitting laser diode device.
10. The apparatus of claim 1 further comprising a controller coupled to the light apparatus; and a reflector coupled to an output of the edge emitting laser diode device; and wherein the optical component comprises a waveguide coupled to the edge emitting laser diode device; and further comprising a projection device coupled to the substantially white light output.
11. A light source apparatus for a vehicle comprising:
a housing to be configured to the vehicle;
a plurality of edge emitting laser diode devices disposed on a common gallium and nitrogen containing material coupled to the housing, each of the plurality of edge emitting laser diode devices configured to emit a laser beam at a different wavelength, at least one of the edge emitting laser diode devices comprising:
an n-cladding layer with a thickness from 100 nm to 5000 nm and a Si doping level of 1E17 to 3E18 cm-3;
an n-side separate confinement heterostructure (SCH) layer comprised of InGaN having a molar fraction of In of between 3% and 10% and a thickness from 20 nm to 100 nm;
multiple quantum well active region layers comprised of at least two InGaN quantum wells each having a thickness from 2 nm to 8.5 nm and separated by GaN barriers having a thickness from 2.5 nm to 8 nm;
a p-cladding layer with a thickness from 400 nm to 1000 nm with Mg doping level of 2E17 to 2E19-3; and
a p++-GaN contact layer with a thickness from 20 nm to 40 nm with Mg doping level of 1E19 to 1E21 cm-3;
an output provided on the plurality of edge emitting laser diode devices to output a laser beam; and
one or more optical members coupled to the output of the plurality of edge emitting laser diode devices, at least one of the one or more optical members comprising a phosphor material, the one or more optical members configured to output a substantially white emission.
12. The apparatus of claim 11 wherein the laser beam is characterized by a blue color.
13. The apparatus of claim 11 further comprising a reflector coupled to the one or more optical members.
14. The apparatus of claim 11 further comprising a controller coupled to the plurality of edge emitting laser diode devices.
15. A light apparatus, the apparatus comprising:
a housing to be configured to a vehicle;
an edge emitting laser diode device coupled to the housing, the edge emitting laser diode device comprising a gallium and nitrogen containing material, the edge emitting laser diode device comprising:
an n-cladding layer with a thickness from 100 nm to 5000 nm and a Si doping level of 1E17 to 3E18 cm-3;
an n-side separate confinement heterostructure (SCH) layer comprised of InGaN having a molar fraction of In of between 3% and 10% and a thickness from 20 nm to 100 nm;
multiple quantum well active region layers comprised of at least two InGaN quantum wells each having a thickness from 2 nm to 8.5 nm and separated by GaN barriers having a thickness from 2.5 nm to 8 nm;
a p-cladding layer with a thickness from 400 nm to 1000 nm with Mg doping level of 2E17 to 2E19 cm-3; and
a p++-GaN contact layer with a thickness from 20 nm to 40 nm with Mg doping level of 1E19 to 1E21 cm-3;
an optical component coupled to an output laser beam of the edge emitting laser diode device;
a color wheel having phosphor material, the color wheel coupled to the edge emitting laser diode device, the phosphor material arranged to be excited by a laser beam from the edge emitting laser diode device;
a substantially white light output from the color wheel;
a reflector coupled to an output of the edge emitting laser diode device; and
a controller coupled to the light apparatus;
wherein the optical component comprises a waveguide coupled to the edge emitting laser diode device.
16. The apparatus of claim 15 wherein the gallium and nitrogen containing material is configured from a non-polar, semipolar, or polar configuration characterizing the gallium and nitrogen containing material.