Optical devices
First Claim
1. A solid state, surface-emitting, optical device having an underlayer, a distributed Bragg reflector (DBR) mirror that is carried by the underlayer and a body of optical gain medium overlaying the DBR mirror,wherein the mirror is a multi-layer dielectric having alternate layers of dielectric material with a high refractive index ratio between the adjacent layers and a reflectivity of the order of 97% or more, and the body of gain medium is part of an epitaxial layered structure which includes a conductive preparation layer extending from the underlayer up the sides of the DBR mirror and laterally over the top of the DBR mirror where it is coalesced into a single layer.
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Accused Products
Abstract
A solid-state, surface-emitting, optical device such as a light emitting diode (LED) or vertical cavity surface emitting laser (VCSEL) has a body of optical gain medium overlying a high reflectivity distributed BRAGG reflector (DBR) mirror which is carried on part of an underlayer. The gain layer is part of an epitaxial layered structure extending from the underlayer over the mirror.
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Citations
53 Claims
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1. A solid state, surface-emitting, optical device having an underlayer, a distributed Bragg reflector (DBR) mirror that is carried by the underlayer and a body of optical gain medium overlaying the DBR mirror,
wherein the mirror is a multi-layer dielectric having alternate layers of dielectric material with a high refractive index ratio between the adjacent layers and a reflectivity of the order of 97% or more, and the body of gain medium is part of an epitaxial layered structure which includes a conductive preparation layer extending from the underlayer up the sides of the DBR mirror and laterally over the top of the DBR mirror where it is coalesced into a single layer.
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11. A solid state, surface-emitting, optical device having an underlayer, a distributed Bragg reflector mirror (DBR) that is carried by the underlayer and a body of optical gain medium overlying the DBR mirror, wherein:
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the DBR mirror is a multi-layer dielectric having alternate layers of dielectric medium with a high refractive index ratio between the adjacent layers, the periodicity of the alternating layers being less than ten and the body of gain medium is part of an epitaxial layered structure that includes a conductive preparation layer that is grown from the underlayer up the sides of the DBR mirror and laterally over the top of the DBR mirror where it is coalesced into a single layer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A solid-state, surface-emitting, optical device having an underlayer, a distributed Bragg reflector mirror (DBR) that is carried by the underlayer, a body of optical gain medium overlying the DBR mirror and a pair of electrodes, wherein:
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the DBR mirror is a multi-layer dielectric having alternate layers of dielectric medium with a high refractive index ratio between the adjacent layers, the body of optical gain medium is part of an epitaxial layered structure that includes a conductive preparation layer that is grown from the underlayer up the sides of the DBR mirror and laterally over the top of the DBR mirror where it is coalesced into a single layer and one of the electrodes is provided on the conductive preparation layer and extends at least partially over the DBR mirror. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A solid state, surface-emitting, optical device having an underlayer, a distributed Bragg reflector mirror (DBR) that is carried by the underlayer, and a body of optical gain medium overlying the DBR mirror, wherein:
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the DBR mirror is a multi-layer dielectric having alternate layers of dielectric medium with a high refractive index ratio between the adjacent layers and has a substantially hexagonal cross section, and the body of gain medium is part of an epitaxial layered structure that is grown from the underlayer up the sides of the DBR mirror and laterally over the top of the DBR mirror where it is coalesced into a single layer. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A solid state, surface-emitting, optical device having an underlayer, a distributed Bragg reflector mirror (DBR) that is carried by the underlayer, and a body of optical gain medium overlying the DBR mirror,
the DBR mirror is a multi-layer dielectric having alternate layers of dielectric medium with a high refractive index ratio between the adjacent layers and the body of gain medium is part of an epitaxial layered structure that is grown from the underlayer up the sides of the DBR mirror and laterally over the top of the DBR mirror where it is coalesced into a single layer, wherein the dielectric layers of the DBR comprise MgF2, CaF2, Al2O3, ZnS, AlN, SiC, Si3N4 and ZrO2.
Specification