Laser package having multiple emitters configured on a support member
AssigneeSoraa Laser Diode, Inc.
InventorsEric Goutain, James W. Raring, Paul Rudy, Hua Huang
Life of this patent
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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.
Claims43
An optical module apparatus comprising a form factor characterized by a length, a width, and a height;
- the height characterized by a dimension of less than 11 mm and greater than 1 mm, the apparatus comprising:
- a support member;
- a plurality of laser diode devices numbered from 1 through N overlying the support member, each of the plurality of laser diode devices configured to emit a laser beam;
- wherein at least some of the plurality of laser diode devices comprise gallium and nitrogen containing laser diode devices configured to emit a laser beam characterized by emission selected from blue emission with a wavelength ranging from 415 nm to 485 nm, green emission with a wavelength ranging from 500 nm to 560 nm, and a combination thereof;
- and wherein N is greater than 1;
- a free space with a non-guided characteristic capable of transmitting the laser beams from each of the plurality of laser diode devices;
- a combiner configured to receive the laser beams from each of the plurality of gallium and nitrogen containing 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;
- and
- a phosphor material optically coupled to the output beam, wherein:
- the support member is configured to transport thermal energy from the plurality of laser diode devices to a heat sink;
- the combiner comprises free-space optics configured to create one or more free space optical beams;
- at least one of the laser beams is characterized by a polarization purity of greater than 60% and less than 100%;
- the output beam is characterized by an operating optical output power of at least 5 W;
- a thermal path from the plurality of laser diode devices to the heat sink characterized by a thermal impedance of less than 4 degrees Celsius per electrical watt of electrical input power characterizing;
- and
- the optical module apparatus is characterized by an optical output power degradation of less than 20% in 500 hours when the optical module apparatus is operated within the optical output power with a constant input current at a base temperature of 25 degrees Celsius.
An optical module apparatus comprising a form factor characterized by a length, a width, and a height;
- the height characterized by a dimension of less than 11 mm and greater than 1 mm, the apparatus comprising:
- a support member;
- a plurality of laser diode devices numbered from 1 through N overlying the support member, each of the plurality of laser diode devices configured to emit a laser beam;
- wherein
- at least some of the plurality of laser diode devices comprise gallium and nitrogen containing laser diode devices configured to emit a laser beam characterized by emission selected from blue emission with a wavelength ranging from 415 nm to 485 nm, green emission with a wavelength ranging from 500 nm to 560 nm, and a combination thereof;
- and wherein N is greater than 1;
- a waveguiding member configured to transmit the laser beams from the plurality of laser optical devices;
- a combiner configured to receive laser beams from the plurality of 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;
- and
- a phosphor material optically coupled to the output beam, wherein
- the support member is configured to transport thermal energy from the plurality of laser diode devices to a heat sink;
- at least one of the laser beams is characterized by a polarization purity of greater than 60% and less than 100%;
- the output beam is characterized by an optical output power of at least 5 W;
- and
- a thermal path from the laser device to a heat sink is characterized by a thermal impedance of less than 4 degrees Celsius per electrical watt of input power.
An optical module apparatus comprising a form factor characterized by a length, a width, and a height;
- the height characterized by a dimension less than 11 mm and greater than 1 mm, the apparatus comprising:
- a support member;
- a plurality of laser diode devices numbered from 1 through N overlying the support member, each of the plurality of laser diode devices configured to emit a laser beam;
- wherein
- at least some of the plurality of laser diode devices comprising gallium and nitrogen containing laser diode devices characterized by a nonpolar or semipolar oriented surface region and configured to emit a laser beam characterized by emission selected from blue emission with a wavelength ranging from 415 nm to 485 nm, green emission with a wavelength ranging from 500 nm to 560 nm, and a combination thereof;
- and wherein N is greater than 1;
- a laser stripe region overlying the nonpolar or semipolar surface region;
- wherein each laser stripe region is oriented in a c-direction or a projection of a c-direction and characterized by a first end and a second end;
- a combiner configured to receive a plurality of laser beams of N incoming laser beams;
- the combiner functioning to cause an output beam with a selected wavelength range, spectral width, power, and spatial configuration, where N is greater than 1;
- and
- a phosphor material optically coupled to the output beam, wherein
- the support member is configured to transport thermal energy from the plurality of laser diode devices to a heat sink;
- at least one of the laser beams is characterized by a polarization purity of greater than 60% and less than 100%;
- the output beam is characterized by a predetermined rated operating optical output power range of at least 5 W;
- and
- a thermal path from the laser device to a heat sink is characterized by a thermal impedance of less than 4 degrees Celsius per electrical watt of input power.
Dependencies are inferred from the claim text.