Multi-spectral laser array and optical system
First Claim
1. A multi-spectral laser light source, comprising:
- a) a substrate;
b) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters has a first lateral mode structure in a first axis orthogonal to the laser light direction and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis, each laser emitter comprising;
i) a first mirror provided on a top surface of the substrate and reflective to light over a predetermined range of wavelengths;
ii) an active region on a top surface of said first mirror for producing laser light;
iii) a second mirror on a top surface of said active region and reflective to light over a predetermined range of wavelengths;
c) a pumping means that excites said plurality of laser emitters; and
wherein said laser light emitted by said plurality of laser emitters to provide multi-spectral output, wherein a first group of laser emitters emits light at nominal wavelengths in one portion of the optical spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the optical spectrum.
1 Assignment
0 Petitions
Accused Products
Abstract
An organic vertical cavity laser light producing device (10) comprises a substrate (20). A plurality of laser emitters (200) emits laser light in a direction orthogonal to the substrate. Each laser emitter within the plurality of laser emitters has a first lateral mode structure in a first axis orthogonal to the laser light direction and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and the first axis. Each laser emitter comprises a first mirror provided on a top surface of the substrate (20) and is reflective to light over a predetermined range of wavelengths. An organic active region (40) produces laser light (350). A second mirror is provided above the organic active region and is reflective to light over a predetermined range of wavelengths. A pumping means excites the plurality of laser emitters.
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Citations
23 Claims
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1. A multi-spectral laser light source, comprising:
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a) a substrate;
b) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters has a first lateral mode structure in a first axis orthogonal to the laser light direction and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis, each laser emitter comprising;
i) a first mirror provided on a top surface of the substrate and reflective to light over a predetermined range of wavelengths;
ii) an active region on a top surface of said first mirror for producing laser light;
iii) a second mirror on a top surface of said active region and reflective to light over a predetermined range of wavelengths;
c) a pumping means that excites said plurality of laser emitters; and
wherein said laser light emitted by said plurality of laser emitters to provide multi-spectral output, wherein a first group of laser emitters emits light at nominal wavelengths in one portion of the optical spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the optical spectrum. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A multi-color laser array comprising:
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a) a substrate;
b) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters, has a first lateral mode structure in a first axis orthogonal to the laser light direction and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis, each laser emitter comprising;
i) a first mirror provided on a top surface of the substrate and reflective to light over a predetermined range of wavelengths;
ii) an active region on a top surface of said first mirror for producing laser light;
iii) a second mirror on a top surface of said active region and reflective to light over a predetermined range of wavelengths;
c) a pumping means that excites said plurality of laser emitters;
d) an arrangement of said laser emitters such that said plurality of laser emitters to form an array, comprising one or more parallel rows of laser emitters, wherein, within a row of laser emitters, a series of said laser emitters are arranged in sequence to form a line of laser emitters that are an array direction;
wherein said parallel rows of laser emitters are arranged in a sequence along a cross array direction; and
wherein said laser light emitted by said plurality of laser emitters is arranged to vary within the visible spectrum to provide multi-color output, such that a group of laser emitters emits light at nominal wavelengths in one portion of the visible spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the visible spectrum. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A multi-color laser array comprising:
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a) a substrate;
b) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters, has a first lateral mode structure in a first axis orthogonal to the laser light direction that corresponds to multi-mode lasing behavior and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis that corresponds to single mode lasing behavior, each laser emitter comprising;
i) a first mirror provided on a top surface of the substrate and reflective to light over a predetermined range of wavelengths;
ii) an active region on a top surface of said first mirror for producing laser light;
iii) a second mirror on a top surface of said active region and reflective to light over a predetermined range of wavelengths;
c) a pumping means that excites said plurality of laser emitters;
d) an arrangement of said laser emitters within said plurality of laser emitters to form an array, comprising one or more parallel rows of laser emitters, wherein, within a row of laser emitters, a series of said laser emitters are arranged in sequence to form a line of laser emitters that are an array direction;
wherein said parallel rows of laser emitters are arranged in a sequence that is a cross array direction; and
wherein said laser light emitted by said plurality of laser emitters is arranged to vary within the visible spectrum to provide multi-color output, such that a group of laser emitters emits light at nominal wavelengths in one portion of the visible spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the visible spectrum.
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14. A multi-color laser array comprising:
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a) a substrate;
b) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters, has a first lateral mode structure in a first axis orthogonal to the laser light direction that corresponds to multi-mode lasing behavior and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis that corresponds to multi-mode lasing behavior, wherein there are many fewer modes in the second axis direction than in the first axis direction, each laser emitter comprising;
i) a first mirror provided on a top surface of the substrate and reflective to light over a predetermined range of wavelengths;
ii) an active region on a top surface of said first mirror for producing laser light;
iii) a second mirror on a top surface of said active region and reflective to light over a predetermined range of wavelengths;
c) a pumping means that excites said plurality of laser emitters;
d) an arrangement of said laser emitters within said plurality of laser emitters to form an array, comprising one or more parallel rows of laser emitters, wherein, within a row of laser emitters, a series of said laser emitters are arranged in sequence to form a line of laser emitters that are an array direction;
wherein said parallel rows of laser emitters are arranged in a sequence that is a cross array direction; and
wherein said laser light emitted by said plurality of laser emitters is arranged to vary within the visible spectrum to provide multi-color output, such that a group of laser emitters emits light at nominal wavelengths in one portion of the visible spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the visible spectrum. - View Dependent Claims (15)
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16. A modulation optical system with a multi-spectral laser array comprising:
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a) a multi-spectral laser array comprising;
i) a substrate;
ii) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters has a first lateral mode structure in a first axis orthogonal to the laser light direction and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis, each laser emitter comprising;
a1) a first mirror provided atop the substrate and reflective to light over a predetermined range of wavelengths;
a2) an active region for producing laser light;
a3) a second mirror provided above the active region and reflective to light over a predetermined range of wavelengths;
a4) an arrangement of said laser emitters within said plurality of laser emitters to form an array, comprising one or more parallel rows of laser emitters, wherein, within a row of laser emitters, a series of said laser emitters are arranged in sequence to form a line of laser emitters in an array direction;
a5) a pumping means that excites said plurality of laser emitters;
wherein said parallel rows of laser emitters are arranged in a sequence in a cross array direction;
wherein said laser light emitted by said plurality of laser emitters is arranged to vary within the optical spectrum to provide multi-spectral output, such that a group of laser emitters emits light at nominal wavelengths in one portion of the optical spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the optical spectrum;
b) optical means, comprising laser beam shaping optics for preparing laser light from said multi-spectral laser array to illuminate a spatial light modulator array; and
c) wherein said spatial light modulator array comprises an arrangement of individually addressed modulator pixels, each of which alter incident laser light in accordance with applied drive signals specific to each of said pixels. - View Dependent Claims (17, 18, 19)
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20. An electronic imaging system with a multi-spectral laser array comprising:
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a) one or more multi-spectral laser arrays, each comprising;
i) a substrate;
ii) a plurality of laser emitters emitting laser light in a direction orthogonal to the substrate, wherein each laser emitter within said plurality of laser emitters, has a first lateral mode structure in a first axis orthogonal to the laser light direction and has a second lateral mode structure in a second axis orthogonal to both the laser light direction and said first axis, each laser emitter comprising;
a1) a first mirror provided on atop the substrate and reflective to light over a predetermined range of wavelengths;
a2) an active region for producing laser light;
a3) a second mirror provided above the active region and reflective to light over a predetermined range of wavelengths;
a4) an arrangement of said laser emitters within said plurality of laser emitters to form an array, comprising one or more parallel rows of laser emitters, wherein, within a row of laser emitters, a series of said laser emitters are arranged in sequence to form a line of laser emitters in an array direction;
a5) a pumping means that excites said plurality of laser emitters;
wherein said parallel rows of laser emitters are arranged in a sequence in a cross array direction;
wherein said laser light emitted by said plurality of laser emitters is arranged to vary within the optical spectrum to provide multi-spectral output, such that a group of laser emitters emits light at nominal wavelengths in one portion of the optical spectrum, and a second group of laser emitters emits light at nominal wavelengths in a second portion of the optical spectrum;
b) optical means, comprising laser beam shaping optics for preparing laser light to illuminate a spatial light modulator array;
which comprises modulator pixels that are individually addressed with applied drive signals bearing data; and
c) imaging optics to re-image said spatial light modulator array onto a target plane. - View Dependent Claims (21, 22, 23)
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Specification