Laser package having multiple emitters with color wheel
First Claim
Patent Images
1. A bar laser device comprising:
- a substrate having a surface region containing gallium and nitrogen material;
a plurality of laser devices arranged in parallel alignment and disposed on the surface region of the substrate, each of the laser devices of the plurality of laser devices being a ridge laser device, wherein every laser device disposed on the surface region of the substrate is one of the laser devices;
a plurality of emitters, one emitter of the plurality of emitters provided for each of the laser devices, the plurality of emitters being characterized by an average operating power of at least 25 mWatts per emitter, each of the plurality of emitters being characterized by an emission of electromagnetic radiation within a wavelength range of between 395 nm and 425 nm or each of the plurality of emitters being characterized by an emission of electromagnetic radiation within a wavelength range of between 430 nm and 480 nm, and each of the laser devices being characterized by a length and a width;
a first common electrode electrically coupled to each of the laser devices;
a second common electrode electrically coupled to the substrate;
an optical device configured with respect to the laser devices for optically combining electromagnetic radiation from the plurality of emitters; and
a color wheel member operably coupled to the optical device and configured to rotate for cooling purposes.
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Abstract
Method and devices for emitting electromagnetic radiation at high power using nonpolar or semipolar gallium containing substrates such as GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, are provided. The laser devices include multiple laser emitters integrated onto a substrate (in a module), which emit green or blue laser radiation.
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Citations
20 Claims
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1. A bar laser device comprising:
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a substrate having a surface region containing gallium and nitrogen material; a plurality of laser devices arranged in parallel alignment and disposed on the surface region of the substrate, each of the laser devices of the plurality of laser devices being a ridge laser device, wherein every laser device disposed on the surface region of the substrate is one of the laser devices; a plurality of emitters, one emitter of the plurality of emitters provided for each of the laser devices, the plurality of emitters being characterized by an average operating power of at least 25 mWatts per emitter, each of the plurality of emitters being characterized by an emission of electromagnetic radiation within a wavelength range of between 395 nm and 425 nm or each of the plurality of emitters being characterized by an emission of electromagnetic radiation within a wavelength range of between 430 nm and 480 nm, and each of the laser devices being characterized by a length and a width; a first common electrode electrically coupled to each of the laser devices; a second common electrode electrically coupled to the substrate; an optical device configured with respect to the laser devices for optically combining electromagnetic radiation from the plurality of emitters; and a color wheel member operably coupled to the optical device and configured to rotate for cooling purposes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A laser device comprising:
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an array of laser devices having a respective plurality of emitters, the plurality of emitters being configured to be operable within a broad spectral output greater than 3 nm FWHM, each of the plurality of emitters being configured to emit electromagnetic radiation within a wavelength range of between 395 nm and 425 nm or each of the plurality of emitters being configured to emit electromagnetic radiation within a wavelength range of between 430 nm and 480 nm, each of the laser devices comprising a gallium and nitrogen containing material and being formed on a surface region, wherein every laser device formed on the surface region is one of the laser devices, and each of the laser devices include a first facet region and a second facet region comprising a mirror surface; a common p-side electrode coupling each of the laser devices; and a common n-side electrode coupling each of the laser devices, the surface region being characterized by a crystallographic orientation selected from a c-plane, an m-plane, a{11-22} plane, a {20-21} plane, a {30-31} plane, a{30-32} plane, a{30-3-1} plane, a {30-3-2} plane, within +/−
5 degrees in an a-direction from the {11-22} plane, within +/−
5 degrees in the a-direction from the {20-21} plane, within +/−
5 degrees in the a-direction from the {30-31} plane, within +/−
5 degrees in the a-direction from the {30-32} plane, within +/−
5 degrees in the a-direction from the {30-3-1} plane, within +/−
5 degrees in the a-direction from the {30-3-2} plane, within +/−
5 degrees in a c-direction from the {11-22} plane, within +/−
5 degrees in the c-direction from the {20-21} plane, within +/−
5 degrees in the c-direction from the {30-31} plane, within +/−
5 degrees in the c-direction from the {30-32} plane, within +/−
5 degrees in the c-direction from the {30-3-1} plane, within +/−
5 degrees in the c-direction from the {30-3-2} plane, and within +/−
5 degrees of an off-cut c-plane;a package member, wherein the array of laser devices are coupled to the package member with a submount; and one or more combiner devices to operably couple electromagnetic radiation emitted by each of the plurality of emitters to form a single beam. - View Dependent Claims (19)
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20. A bar laser device comprising:
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a substrate having a surface region containing gallium and nitrogen material; at least three laser devices arranged in parallel alignment and overlying the surface region of the substrate, each of the laser devices of the at least three laser devices being a ridge laser device, wherein every laser device disposed on the surface region of the substrate is one of the laser devices; a plurality of emitters, one emitter of the plurality of emitters provided for each of the laser devices, the plurality of emitters being characterized by an average operating power of at least 25 mWatts per emitter, each of the plurality of emitters being characterized by an emission of electromagnetic radiation at a wavelength that is substantially the same as the wavelength of others of the plurality of emitters; a first common electrode electrically coupled to each of the plurality of emitters; a second common electrode electrically coupled to the substrate; an optical device configured with respect to the laser devices for optically combining emitted electromagnetic radiation from the plurality of emitters; and a color wheel member operably coupled to the optical device and configured to rotate for cooling purposes.
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Specification