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公开(公告)号：US20240128722A1
公开(公告)日：2024-04-18
申请号：US18275975
申请日：2022-01-11
CPC分类号： H01S5/18361 , H01S5/18322 , H01S5/34333 , H01S5/34346
摘要： [Object] To provide a vertical cavity surface emitting laser device having a concave mirror structure and excellent polarization controllability.
[Solving Means] A vertical cavity surface emitting laser device according to the present technology includes: a first light-reflecting layer; a second light-reflecting layer; and a stacked body. The stacked body includes a first semiconductor layer, a second semiconductor layer, and an active layer, and is disposed between the first light-reflecting layer and the second light-reflecting layer. The stacked body has a current confinement structure for confining a current and forming a current injection region where a current concentrates. The first light-reflecting layer includes a concave mirror having a concave surface on a side of the stacked body and a convex surface on a side opposite to the stacked body. A first figure and a second figure are not similar, the first figure being a plane figure of the current injection region when viewed from an optical axis direction of emitted light, the second figure being a plane figure of a contour line when viewed from the optical axis direction, the contour line representing a height of the concave mirror from the active layer.-
公开(公告)号：US11962900B2
公开(公告)日：2024-04-16
申请号：US16998567
申请日：2020-08-20
发明人： Neale Dutton , Stuart McLeod , Bruce Rae
IPC分类号： H04N23/67 , G01S7/481 , G01S7/4863 , G01S17/86 , G01S17/894 , H01S5/183 , H04M1/02 , H04N23/90 , H04N25/443
CPC分类号： H04N23/67 , G01S7/4815 , G01S7/4863 , G01S17/86 , G01S17/894 , H04M1/0202 , H04N23/90 , H04N25/443 , H01S5/183 , H04M2250/12 , H04N23/671
摘要： In some embodiments, a ToF sensor includes an illumination source module, a transmitter lens module, a receiver lens module, and an integrated circuit that includes a ToF imaging array. The ToF imaging array includes a plurality of SPADs and a plurality of ToF channels coupled to the plurality of SPADs. In a first mode, the ToF imaging array is configured to select a first group of SPADs corresponding to a first FoV. In a second mode, the ToF imaging array is configured to select a second group of SPADs corresponding to a second FoV different than the first FoV.
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43.发明公开公开(公告)号：US20240120709A1
公开(公告)日：2024-04-11
申请号：US18264698
申请日：2022-01-19
IPC分类号： H01S5/0683 , H01S5/042 , H01S5/06 , H01S5/068 , H01S5/183
CPC分类号： H01S5/0683 , H01S5/0425 , H01S5/0601 , H01S5/06808 , H01S5/183
摘要： The present technology provides a surface emitting element capable of enabling highly accurate detection of an optical characteristic of an emitted light and/or enabling adjustment of the optical characteristic of the emitted light. The surface emitting element of the present technology provides a surface emitting element including a light emitting layer, a characteristic layer that is disposed on an optical path of light generated in the light emitting layer, exhibits an electrical characteristic due to light incidence, and/or has variability in an optical characteristic due to voltage application, and a plurality of electrodes provided on the characteristic layer.
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公开(公告)号：US11936158B2
公开(公告)日：2024-03-19
申请号：US16949213
申请日：2020-10-20
CPC分类号： H01S5/04256 , H01S5/423 , H01S5/18394
摘要： In some implementations, a vertical-cavity surface-emitting laser (VCSEL) array may comprise a plurality of channels, a plurality of traces, and a plurality of emitters. A channel, of the plurality of channels, may include a set of emitters, of the plurality of emitters, arranged in a row of emitters. The channel may include a trace, of the plurality of traces, that has a trace width that is tapered along a length of the trace. Numerous other aspects are provided.
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公开(公告)号：US20240088629A1
公开(公告)日：2024-03-14
申请号：US17931834
申请日：2022-09-13
申请人： II-VI Delaware, Inc.
IPC分类号： H01S5/42 , H01S5/00 , H01S5/02253 , H01S5/02345 , H01S5/183
CPC分类号： H01S5/423 , H01S5/0071 , H01S5/02253 , H01S5/02345 , H01S5/18388
摘要： A laser assembly, such as a flood illuminator, has laser (e.g., VCSEL) emitters on a substrate configured to emit optical signals. An optic structure of optically transparent material, such as a polymer, is formed directly on the substrate, and micro-optic elements are nano-imprinted on the optic structure. The micro-optic elements are arranged in optical communication with the optical signals emitted from the laser emitters to perform field mapping or other optical functions. The laser emitters are on the same surface of the substrate as the optic structure along with electrical contacts so forming the optic structure involves covering the electrical contacts with a protective layer, dispensing a polymer for the optic structure, cutting away portions of the optic structure, removing the remaining protective layer, and exposing the electrical contacts.
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公开(公告)号：US20240088627A1
公开(公告)日：2024-03-14
申请号：US18272878
申请日：2022-01-07
发明人： Takahiro ARAKIDA
CPC分类号： H01S5/3095 , H01S5/18361 , H01S5/3215
摘要： The present technology provides a surface emitting laser capable of reducing a voltage drop at a tunnel junction.
The present technology provides a surface emitting laser including: first and second multilayer film reflectors (102, 112) laminated together; a plurality of active layers laminated together between the first and second multilayer film reflectors (102, 112); and a tunnel junction (107) disposed between first and second active layers (104, 110) adjacent to each other in a lamination direction among the plurality of active layers, in which the tunnel junction (107) includes an n-type semiconductor layer (107b) and a p-type semiconductor layer (107a) laminated together, and the p-type semiconductor layer (107a) includes first and second p-type semiconductor regions (107a1, 107a2) laminated together.-
公开(公告)号：US11925058B2
公开(公告)日：2024-03-05
申请号：US18154977
申请日：2023-01-16
发明人： Jiaqi Cheng , Jordan Peckham
IPC分类号： H10K50/852 , H01S5/042 , H01S5/183 , H10K71/00
CPC分类号： H10K50/852 , H01S5/04256 , H01S5/18361 , H10K71/00
摘要： A microcavity pixel design and structure allowing for tuning the optical cavity length of the microcavity of a microcavity pixel structure. This is achieved by including an intermediate electrode in the device which has an overhang region to form a connecting area to a bottom electrode, alleviating design restrictions in material type and dimensions throughout the optical microcavity tuning process. A method for the fabrication of a multi-colored microcavity pixel array facilitating the use of blanket deposition methods for select layers within a microcavity pixel structure.
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公开(公告)号：US11923661B2
公开(公告)日：2024-03-05
申请号：US17260876
申请日：2019-06-14
CPC分类号： H01S5/18311 , H01S5/18344 , H01S5/18377 , H01S5/2275
摘要： A method of manufacturing a surface emitting laser according to an embodiment of the present disclosure includes the following two steps:
(1) a step of forming a semiconductor stacked structure on a substrate, the semiconductor stacked structure including an active layer, a first DBR layer of a first electrical conduction type, and a second DBR layer of a second electrical conduction type, the first DBR layer and the second DBR layer sandwiching the active layer, the second electrical conduction type being different from the first electrical conduction type; and
(2) a step of forming a mesa section at a portion on the second DBR layer side in the semiconductor stacked structure and then forming an annular diffusion region of the first electrical conduction type at an outer edge of the mesa section by impurity diffusion from a side surface of the mesa section, the mesa section including the second DBR layer, the mesa section not including the active layer.-
公开(公告)号：US20240072518A1
公开(公告)日：2024-02-29
申请号：US18107140
申请日：2023-02-08
申请人： Bandwidth10, LTD.
发明人： Neelanjan Bandyopadhyay , Carlos F. R. Mateus , Christopher Chase , Michael Y. Huang , Chuanshun Cao , Dalila Ellafi , Carl V. Ford , Kai Hui , Philip Worland
CPC分类号： H01S5/3095 , H01S5/18327 , H01S5/18358 , H01S5/18394 , H01S5/0071
摘要： A light emitting device has a first mirror; and one or more active regions with a first active region adjacent to the first mirror. Each of active region includes quantum wells and barriers, and is surrounded by one or more p-n junctions. The active regions have a selected shape structure each with a tunnel junction (TJ). One or more apertures are provided with the selected shape structure; one or more buried tunnel junctions (BTJ), additional TJ's, planar structures and/or additional BTJ's, created during a regrowth process that is independent of a first growth process of the first mirror as well as the active region and the one or more TJs. One or more electrical confinement apertures are defined by the one or more BTJ's, additional TJ's, planar structures and/or additional BTJ's. A vertical resonator cavity is disposed over the electrical confinement aperture. A high contrast grating (HCG) operates as a second mirror positioned over the vertical resonator cavity. The HCG is configured to reflect a first portion of light back into the vertical resonator cavity, and a second portion of the light as an output beam from the VCSEL. The HCG structure is layered on the selected shape structure. A shape of the output beam of the light emitting device is determined by a geometric shape of the one or more BTJ apertures, apertures for additional TJ's, planar structures and/or additional BTJ's, with a transmission function of the HCG. The shape is designed according to the desired optical transmission function of the application.
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公开(公告)号：US20240069253A1
公开(公告)日：2024-02-29
申请号：US18496096
申请日：2023-10-27
申请人： II-VI Delaware, Inc.
发明人： Jimmy A. TATUM , James K. GUENTER
CPC分类号： G02B5/021 , G02B3/0043 , G02B27/0905 , G02B27/0927 , G02B27/0961 , H01S5/0236 , H01S5/026 , H01S5/183 , H01S5/18391 , H01S5/423 , G02B27/0944
摘要： An embodiment includes a light source. The light source may include a substrate and a diffuser. The substrate may include a first surface and a second surface. The second surface may be opposite the first surface. The diffuser may be carried by the substrate. The diffuser may be configured to receive an optical signal from the substrate after the optical signal propagates through the substrate and to control a particular profile of a resultant beam of the optical signal over two axes after the optical signal propagates through the integrated diffuser.
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