Laser package having multiple emitters configured on a support member
First Claim
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1. A lighting system comprising:
- an apparatus comprising a white lighting device, a multi-colored lighting device, a flat panel device, a beam projector device, or a display device;
1 to N laser diode devices configured to provide light for the apparatus, wherein N ranges from 2 to 50, at least one of the 1 to N laser diode devices comprises gallium and nitrogen, and each of the 1 to N laser diode devices is configured to emit a laser beam characterized by a wavelength ranging from 390 nm to 485 nm;
a free space with a non-guided characteristic capable of transmitting the laser beam from each of the 1 to N laser diode devices;
an optical device configured to receive the laser beam from each of the 1 to N laser diode devices and to provide an output beam characterized by a selected wavelength range, a selected spectral width, a selected power, and a selected spatial configuration;
an output power characterizing the output beam, the output power being at least 0.5 W;
a phosphor material optically coupled to the output beam;
a support member configured to transport thermal energy from the 1 to N laser diode devices to a heat sink;
a free space optics included in the optical device and configured to create one or more free space optical beams;
a thermal path from the 1 to N laser diode devices to the heat sink characterized by a thermal impedance; and
whereupon the output beam is characterized by an optical output power degradation of less than 20% in 500 hours when the 1 to N laser diode devices are operated at the output power and with a substantially constant input current at a base temperature of about 25 degrees Celsius.
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Abstract
A method and device for emitting electromagnetic radiation at high power using nonpolar or semipolar gallium containing substrates such as GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, is provided. In various embodiments, the laser device includes plural laser emitters emitting green or blue laser light, integrated a substrate.
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Citations
20 Claims
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1. A lighting system comprising:
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an apparatus comprising a white lighting device, a multi-colored lighting device, a flat panel device, a beam projector device, or a display device; 1 to N laser diode devices configured to provide light for the apparatus, wherein N ranges from 2 to 50, at least one of the 1 to N laser diode devices comprises gallium and nitrogen, and each of the 1 to N laser diode devices is configured to emit a laser beam characterized by a wavelength ranging from 390 nm to 485 nm; a free space with a non-guided characteristic capable of transmitting the laser beam from each of the 1 to N laser diode devices; an optical device configured to receive the laser beam from each of the 1 to N laser diode devices and to provide an output beam characterized by a selected wavelength range, a selected spectral width, a selected power, and a selected spatial configuration; an output power characterizing the output beam, the output power being at least 0.5 W; a phosphor material optically coupled to the output beam; a support member configured to transport thermal energy from the 1 to N laser diode devices to a heat sink; a free space optics included in the optical device and configured to create one or more free space optical beams; a thermal path from the 1 to N laser diode devices to the heat sink characterized by a thermal impedance; and whereupon the output beam is characterized by an optical output power degradation of less than 20% in 500 hours when the 1 to N laser diode devices are operated at the output power and with a substantially constant input current at a base temperature of about 25 degrees Celsius. - View Dependent Claims (2, 3, 4, 5)
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6. A lighting system comprising:
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an apparatus comprising a white lighting device, a multi-colored lighting device, a flat panel device, a beam projector device, or a display device; a support member; 1 to N laser diode devices configured to provide light for the apparatus, wherein each of the 1 to N laser diode devices are coupled to the support member, N ranges from 2 to 50, at least one of the 1 to N laser diode devices comprises gallium and nitrogen, and each of the 1 to N laser diode devices is configured to emit a laser beam characterized by a wavelength ranging from 390 nm to 485 nm; an optical fiber configured to receive the laser beam from each of the 1 to N laser diode devices by optical coupling and to provide an output beam characterized by a selected wavelength range, a selected spectral width, a selected power, and a selected spatial configuration, the output beam being characterized by an optical output power of at least 0.5 W; and a phosphor material optically coupled to the output beam from the optical fiber, wherein the support member is configured to transport thermal energy from the 1 to N laser diode devices to a heat sink; a thermal path from the 1 to N laser diode devices to the heat sink characterized by a thermal impedance; and whereupon the output beam is characterized by an optical output power degradation of less than 20% in 500 hours when the 1 to N laser diode devices are operated at the output power and with a substantially constant input current at a base temperature of about 25 degrees Celsius. - View Dependent Claims (7, 8, 9, 10)
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11. A lighting system comprising:
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an apparatus comprising a white lighting device, a multi-colored lighting device, a flat panel device, a beam projector device, or a display device; 1 to N laser diode devices configured to provide light for the apparatus, wherein N ranges from 2 to 50, at least one of the 1 to N laser diode devices comprises gallium and nitrogen, and each of the 1 to N laser diode devices is configured to emit a laser beam characterized by a wavelength ranging from 390 nm to 485 nm; a free space with a non-guided characteristic capable of transmitting the laser beam from each of the 1 to N laser diode devices to an optical fiber or light guide located remotely at 10 to 100 mm relative to the 1 to N laser diode devices; an optical device configured to receive the laser beam from each of the 1 to N laser diode devices and to provide an output beam characterized by a selected wavelength range, a selected spectral width, a selected power, and a selected spatial configuration; an output power characterizing the output beam, the output power being at least 0.5 W; a phosphor material optically coupled to the output beam;
wherein the phosphor material is configured to operate in a mode selected from a reflective mode, a transmissive mode, or a combination of a reflective mode and a transmissive mode;a support member configured to transport thermal energy from the 1 to N laser diode devices to a heat sink; and a thermal path from the 1 to N laser diode devices to the heat sink characterized by a thermal impedance. - View Dependent Claims (12, 13, 14, 15)
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16. A lighting system comprising:
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an apparatus comprising a white lighting device, a multi-colored lighting device, a flat panel device, a beam projector device, or a display device; a support member; 1 to N laser diode devices configured to provide light for the apparatus, wherein each of the 1 to N laser diode devices are coupled to the support member, wherein N ranges from 2 to 50, at least one of the 1 to N laser diode devices comprises gallium and nitrogen, and each of the 1 to N laser diode devices is configured to emit a laser beam characterized by a wavelength ranging from 390 nm to 485 nm an optical fiber configured to receive the laser beam from each of the 1 to N laser diode devices by optical coupling and to provide an output beam characterized by a selected wavelength range, a selected spectral width, a selected power, and a selected spatial configuration, the output beam being characterized by an optical output power of at least 0.5 W; a phosphor material optically coupled to the output beam from the optical fiber, wherein the phosphor material is configured to operate in a mode selected from a reflective mode, a transmissive mode, or a combination of a reflective mode and a transmissive mode; the support member is configured to transport thermal energy from the 1 to N laser diode devices to a heat sink; and a thermal path from the 1 to N laser diode devices to the heat sink is characterized by a thermal impedance, wherein the phosphor material is thermally coupled to the support member along a continuous thermal gradient toward a selected portion of a heat sink region within a vicinity of the support member. - View Dependent Claims (17, 18, 19, 20)
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Specification