Vertical-cavity surface-emitting laser diode device
First Claim
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1. A vertical-cavity surface-emitting laser diode (VCSEL) device, comprising:
- a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type; and
a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing heat converting region absorbing light and generating heat;
the light absorbing heat converting region comprising a compound that absorbs light and converts it into heat and is of any one of Ge—
Sb—
Te alloy, Sb metal, Ag—
In—
Sb—
Te alloy, Ag—
In—
Sb—
Te—
alloy, lithium niobate, or methyl nitroaniline;
the light absorbing heat converting region being formed, in a groove by removing a portion of a semiconductor layer of the laser element portion, and the light absorbing heat converting region being monolithically formed with the laser element portion on the substrate.
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Abstract
A vertical-cavity surface-emitting laser diode (VCSEL) device, including a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type, and a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing heat converting region absorbing light and generating heat.
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Citations
20 Claims
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1. A vertical-cavity surface-emitting laser diode (VCSEL) device, comprising:
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a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type; and a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing heat converting region absorbing light and generating heat;
the light absorbing heat converting region comprising a compound that absorbs light and converts it into heat and is of any one of Ge—
Sb—
Te alloy, Sb metal, Ag—
In—
Sb—
Te alloy, Ag—
In—
Sb—
Te—
alloy, lithium niobate, or methyl nitroaniline;
the light absorbing heat converting region being formed, in a groove by removing a portion of a semiconductor layer of the laser element portion, and the light absorbing heat converting region being monolithically formed with the laser element portion on the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A light transmission device comprising;
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a VCSEL device; and a transmitting component that transmits laser light emitted from the VCSEL device by an optical medium, the VCSEL device including a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type and including a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing heat converting region absorbing light and generating heat;
the light absorbing heat converting region comprising a compound that absorbs light and converts it into heat and is of any one of Ge—
Sb—
Te alloy, Sb metal, Ag—
In—
Sb—
Te alloy, Ag—
In—
Sb—
Te—
alloy, lithium niobate, or methyl nitroaniline;
the light absorbing heat converting region being formed, in a groove by removing a portion of a semiconductor layer of the laser element portion, and the light absorbing heat converting region being monolithically formed with the laser element portion on the substrate.
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18. An optical spatial transmission unit comprising;
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a VCSEL device; and a transmission component that spatially transmits light emitted from the device, the VCSEL device including a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type and including a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing heat converting region absorbing light and generating heat;
the light absorbing heat converting region comprising a compound that absorbs light and converts it into heat and is of any one of Ge—
Sb—
Te alloy, Sb metal, Ag—
In—
Sb—
Te alloy, Ag—
In—
Sb—
Te—
alloy, lithium niobate, or methyl nitroaniline;
the light absorbing heat converting region being formed, in a groove by removing a portion of a semiconductor layer of the laser element portion, and the light absorbing heat converting region being monolithically formed with the laser element portion on the substrate.
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19. A light sending system comprising;
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a VCSEL device; and a transmitting component that transmits laser light emitted from the device, the VCSEL device including a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type and including a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing heat converting region absorbing light and generating heat;
the light absorbing heat converting region comprising a compound that absorbs light and converts it into heat and is of any one of Ge—
Sb—
Te alloy, Sb metal, Ag—
In—
Sb—
Te alloy, Ag—
In—
Sb—
Te—
alloy, lithium niobate, or methyl nitroaniline;
the light absorbing heat converting region being formed, in a groove by removing a portion of a semiconductor layer of the laser element portion, and the light absorbing heat converting region being monolithically formed with the laser element portion on the substrate.
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20. An optical spatial transmission system comprising;
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a VCSEL device; and a transmission component that spatially transmits light emitted from the device, the VCSEL device including a laser element portion formed on a substrate, the laser element portion comprising a multi-layer reflective mirror of a first conductivity type, an active layer, and a multi-layer reflective mirror of a second conductivity type and including a light absorbing heat converting region at a position thermally connected to the laser element portion on the substrate, the light absorbing, heat converting region absorbing light and generating heat;
the light absorbing heat converting region comprising a compound that absorbs light and converts it into heat and is of any one of Ge—
Sb—
Te alloy, Sb metal, Ag—
In—
Sb—
Te alloy, Ag—
In—
Sb—
Te—
alloy, lithium niobate, or methyl nitroaniline;
the light absorbing heat converting region being formed, in a groove by removing a portion of a semiconductor layer of the laser element portion, and the light absorbing heat converting region being monolithically formed with the laser element portion on the substrate.
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Specification