Patent application number | Description | Published |
20100283063 | LIGHT RECEIVING AND EMITTING DEVICE - A light receiving and emitting device includes: a light emitting unit and a light receiving unit which are provided on a same substrate, wherein the light emitting unit includes an active layer sandwiched between a first clad layer and a second clad layer, a first electrode electrically connected to the first clad layer, and a second electrode electrically connected to the second clad layer, the light receiving unit includes a light-absorbing layer, at least part of the active layer forms a gain region on a current path between the first electrode and the second electrode, the gain region is provided from a first side face of the active layer to a second side face parallel to the first side face so as to be inclined with respect to a perpendicular of the first side face as seen in a planar view, a light generated in the gain region is divided, at least one of an edge face on the first side face and an edge face on the second side face, the edge faces of the gain region, into a light emitted to an outside and a reflected light, and the reflected light is received by the light receiving unit. | 11-11-2010 |
20100322273 | LIGHT EMISSION DEVICE, LIGHT EMISSION DEVICE DRIVING METHOD, AND PROJECTOR - A light emission device includes: a first clad layer; an active layer disposed above the first clad layer; a second clad layer disposed above the active layer; a first electrode electrically connected with the first clad layer; and second electrodes electrically connected with the second clad layer, wherein at least a part of the active layer forms a plurality of gain areas, the plural second electrodes are provided in correspondence with the plural gain areas, the plural gain areas extend from a first side of the active layer to a second side of the active layer opposed to the first side while inclined to a vertical line of the first side in the plan view, at least a first gain area and a second gain area included in the plural gain areas form a set of gain areas, a plurality of the sets of the gain areas are provided, the first gain area and the second gain area included in each set of the gain areas are disposed in this order in a second direction perpendicular to a first direction extending from the first side to the second side in the plan view, the second electrodes disposed above the plural first gain areas are electrically connected with one another by a first common electrode, and the second electrode disposed above the plural second gain areas are electrically connected with one another by a second common electrode. | 12-23-2010 |
20120140190 | LIGHT EMISSION DEVICE, LIGHT EMISSION DEVICE DRIVING METHOD, AND PROJECTOR - A light emission device includes: first and second clad layers sandwiching an active layer; a first electrode connected with the first clad layer; and second electrodes connected with the second clad layer, at least part of the active layer forms gain areas corresponding to the second electrodes, the gain areas extend from a first side to a second side of the active layer while inclined to a vertical of the first side, at least first and second gain areas form a set of gain areas and a plurality of sets are provided, the first and second gain areas in each set are disposed perpendicular to a direction extending from the first side to the second side, the second electrodes above the first gain areas are interconnected by a first common electrode, and the second electrodes above the second gain areas are interconnected by a second common electrode. | 06-07-2012 |
20130027443 | LIGHT EMISSION DEVICE, LIGHT EMISSION DEVICE DRIVING METHOD, AND PROJECTOR - A light emission device includes: first and second clad layers sandwiching an active layer; a first electrode connected with the first clad layer; and second electrodes connected with the second clad layer, at least part of the active layer forms gain areas corresponding to the second electrodes, the gain areas extend from a first side to a second side of the active layer while inclined to a vertical of the first side, at least first and second gain areas form a set of gain areas and a plurality of sets are provided, the first and second gain areas in each set are disposed perpendicular to a direction extending from the first side to the second side, the second electrodes above the first gain areas are interconnected by a first common electrode, and the second electrodes above the second gain areas are interconnected by a second common electrode. | 01-31-2013 |
20130092959 | LIGHT RECEIVING AND EMITTING DEVICE - A light emitting device includes: a light emitting unit and a light receiving unit which are provided on a same substrate, wherein the light emitting unit includes an active layer sandwiched between a first clad layer and a second clad layer, a first electrode electrically connected to the first clad layer, and a second electrode electrically connected to the second clad layer. | 04-18-2013 |
20140192330 | ILLUMINATION DEVICE AND PROJECTOR - An illumination device includes: a light emitting element that includes an active layer, a first clad layer and a second clad layer with the active layer interposed therebetween, and a first gain region and a second gain region generating light when a current flows through the active layer; a control unit that operates the light emitting element so that light is alternately generated in the first gain region and the second gain region; and a first lens to which light emitted from a first light emitting portion of the first gain region and light emitted from a second light emitting portion of the second gain region are incident, wherein the light emitted from the first light emitting portion and the light emitted from the second light emitting portion are emitted in the same direction and are incident to the first lens. | 07-10-2014 |
20150180206 | VERTICAL CAVITY SURFACE EMITTING LASER AND ATOMIC OSCILLATOR - A vertical cavity surface emitting laser includes: a substrate; and a laminated body which is provided over the substrate, wherein, in a plan view, the laminated body includes a first distortion imparting portion, a second distortion imparting portion, and a resonance portion which is provided between the first distortion imparting portion and the second distortion imparting portion and resonates light generated in the laminated body, and the laminated body includes a first mirror layer which is provided over the substrate, an active layer which is provided over the first mirror layer, a second mirror layer which is provided over the active layer, and a contact layer which is provided over the second mirror layer of the resonance portion, except for a portion over the second mirror layer of the first distortion imparting portion and for a portion over the second mirror layer of the second distortion imparting portion. | 06-25-2015 |
20150180211 | VERTICAL CAVITY SURFACE EMITTING LASER AND ATOMIC OSCILLATOR - A vertical cavity surface emitting laser includes: a substrate; and a laminated body which is provided over the substrate, wherein the laminated body includes a first mirror layer, an active layer, and a second mirror layer, in a plan view, the laminated body includes a first distortion imparting portion, a second distortion imparting portion, and a resonance portion which is provided between the first distortion imparting portion and the second distortion imparting portion and resonates light generated by the active layer, and an angle formed by a side surface of the first distortion imparting portion and an upper surface of the substrate, and an angle formed by a side surface of the second distortion imparting portion and the upper surface of the substrate are greater than an angle formed by a side surface of the resonance portion and the upper surface of the substrate. | 06-25-2015 |