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公开(公告)号：US11454831B2
公开(公告)日：2022-09-27
申请号：US17159947
申请日：2021-01-27
Inventor： Oh Kee Kwon , Kisoo Kim , Su Hwan Oh , Chul-Wook Lee
IPC: G02F1/01
Abstract: An optical device according to the embodiment of the inventive concept includes a waveguide path including a light generation region, a wavelength variable region, and a light modulation region, a first light waveguide layer provided in the light generation region to generate light, a second light waveguide layer provided in the wavelength variable region and connected to the first light waveguide layer, a ring-shaped third light waveguide layer provided in the light modulation region and connected to the second light waveguide layer, and first and second light modulation electrodes spaced apart from each other with the light modulation region therebetween. Here, the first light modulation electrode, the third light waveguide layer, and the second light modulation electrode vertically overlap each other.
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公开(公告)号：US10476232B2
公开(公告)日：2019-11-12
申请号：US15702262
申请日：2017-09-12
Inventor： OH Kee Kwon , Su Hwan Oh , Chul-Wook Lee , Kisoo Kim
IPC: H01S5/125 , H01S5/024 , H01S5/026 , H01S5/12 , H01S5/065 , H01S5/0625 , H01S5/042 , H01S5/06 , H01S5/02
Abstract: Provided are an optical apparatus, a manufacturing method of a distributed Bragg reflector laser diode, and a manufacturing method of the optical apparatus, the an optical apparatus including a cooling device, a distributed Bragg reflector laser diode having a lower clad including a recess region on one side of the cooling device and connected to another side of the cooling device, and an air gap between the cooling device and the distributed Bragg reflector laser diode, wherein the air gap is defined by a bottom surface of the lower clad in the recess region and a top surface of the cooling device.
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公开(公告)号：US10148067B2
公开(公告)日：2018-12-04
申请号：US15712874
申请日：2017-09-22
Inventor： Oh Kee Kwon , Chul-Wook Lee , Su Hwan Oh , Kisoo Kim
Abstract: Provided is a distributed Bragg reflector tunable laser diode including a substrate provided with a gain section having an active waveguide from which a gain of laser light is obtained and a distributed reflector section having a passive waveguide connected to the active waveguide, wherein the distributed reflector section includes gratings disposed on or under the passive waveguide, a current injection electrode disposed on the passive waveguide and configured to provide a current into the passive waveguide to electrically tune a wavelength of the laser light, and a heater electrode disposed on the current injection electrode and configured to heat the passive waveguide to thermally tune the wavelength of the laser light, wherein the gratings, the current injection electrode, and the heater electrode vertically overlap each other.
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公开(公告)号：US09590135B2
公开(公告)日：2017-03-07
申请号：US15190468
申请日：2016-06-23
Inventor： Su Hwan Oh , Min Su Kim
IPC: H01L33/00 , H01L33/58 , G02B6/00 , H01S5/00 , H01S5/024 , H01S5/14 , H01L33/06 , H01S5/04 , G02B6/12 , H01S5/028 , H01S5/0625 , H01S5/10
CPC classification number: H01L33/0045 , G02B6/00 , G02B6/12004 , H01L33/06 , H01L33/58 , H01L2933/0058 , H01S5/00 , H01S5/02446 , H01S5/0287 , H01S5/041 , H01S5/06256 , H01S5/1014 , H01S5/1032 , H01S5/141
Abstract: A superluminescent diode and a method for implementing the same, wherein the method includes growing a first epi layer on top of an SI (semi-insulating substrate); re-growing a butt based on the first epi layer; forming a tapered SSC (spot size converter) on the re-grown butt layer; forming an optical waveguide on an active area that is based on the first epi layer and on an SSC area that is based on the tapered SSC; forming an RWG on the optical waveguide; and forming a p-type electrode and an n-type electrode.
Abstract translation: 一种超发光二极管及其实现方法，其中该方法包括在SI（半绝缘基板）的顶部生长第一外延层; 基于第一个epi层重新生长一个对接; 在再生长的对接层上形成锥形SSC（光斑尺寸转换器）; 在基于第一外延层和基于锥形SSC的SSC区域的有源区上形成光波导; 在光波导上形成RWG; 并形成p型电极和n型电极。
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公开(公告)号：US09276376B2
公开(公告)日：2016-03-01
申请号：US14336504
申请日：2014-07-21
Inventor： Su Hwan Oh , Oh Kee Kwon
CPC classification number: H01S5/02469 , G02B6/2804 , G02B6/4204 , G02B6/4269 , G02B6/4271 , H01S5/02212 , H01S5/02284 , H01S5/4012
Abstract: A laser module includes a Transmitter Optical Sub-Assembly (TOSA) and a heat radiating means. The TOSA generates light by an electrical signal and transmits the generated light through an optical fiber. The heat radiating means is in contact with the TOSA to discharge heat generated by the TOSA.
Abstract translation: 激光模块包括发射机光学子组件（TOSA）和散热装置。 TOSA通过电信号产生光，并通过光纤传输所产生的光。 散热装置与TOSA接触以排放TOSA产生的热量。
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Patent Agency Ranking
公开(公告)号：US12224553B2
公开(公告)日：2025-02-11
申请号：US17561212
申请日：2021-12-23
Inventor： Su Hwan Oh , Oh Kee Kwon , Chul-Wook Lee , Kisoo Kim
IPC: H01S5/024 , H01S5/02 , H01S5/026 , H01S5/0625 , H01S5/125
Abstract: Provided is a laser diode and a method for manufacturing the same. The diode includes a substrate including a DBR region having a channel hole, an active region, and a phase shift region, an optical waveguide provided on the substrate and extending from the active region to the DBR region, a lower insulation layer disposed on the optical waveguide, upper electrodes disposed on the lower insulation layer, and a heat blocking layer disposed in the channel hole of the DBR region and thermally separating the optical waveguide from the substrate.
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公开(公告)号：US12062884B2
公开(公告)日：2024-08-13
申请号：US17182976
申请日：2021-02-23
Inventor： Oh Kee Kwon , Kisoo Kim , Su Hwan Oh , Chul-Wook Lee
CPC classification number: H01S5/06256 , H01S5/026 , H01S5/04256 , H01S5/0625 , H01S5/068 , H01S5/227 , H01S5/06258 , H01S5/1007 , H01S5/18363
Abstract: Provided is a laser device according to embodiments of the inventive concept comprising a substrate including a gain region, a phase control region, and a tuning region arranged along a first direction, the substrate having an air gap which extends from the phase control region to the tuning region, an upper clad layer on the substrate, a waveguide structure extending in the first direction between the upper clad layer and the substrate, a first upper electrode disposed on the upper surface of the upper clad layer of the tuning region, and a lower electrode disposed on a lower surface of the substrate and extending from the gain region to the tuning region, wherein the air gap may have a larger width than the waveguide in a second direction crossing the first direction.
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公开(公告)号：US10931083B2
公开(公告)日：2021-02-23
申请号：US16585035
申请日：2019-09-27
Inventor： Oh Kee Kwon , Su Hwan Oh , Chul-Wook Lee , Kisoo Kim
IPC: H01S5/125 , H01S5/024 , H01S5/026 , H01S5/12 , H01S5/065 , H01S5/0625 , H01S5/06 , H01S5/02 , H01S5/042
Abstract: An optical apparatus includes a cooling device with a lower clad disposed thereon; a waveguide disposed on the lower clad and including an active waveguide to define a gain section and a passive waveguide to define a wavelength-tunable section; gratings disposed in the lower clad of the wavelength-tunable section; an upper clad disposed on the waveguide; a first upper electrode disposed on the upper clad of the gain section; and a second upper electrode disposed on the upper clad of the wavelength-tunable section. The lower clad of the wavelength-tunable section has a recess region to expose an upper surface of the cooling device, the recess region forming an air gap-having a height of 10 μm to 80 μm from the upper surface of the cooling device. The gratings are formed in a depth of at least 5 μm from a bottom surface of the lower clad of the recess region.
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公开(公告)号：US08902937B2
公开(公告)日：2014-12-02
申请号：US13848247
申请日：2013-03-21
Inventor： Ki-Hong Yoon , O-Kyun Kwon , Kisoo Kim , Byungseok Choi , Hyun Soo Kim , Su Hwan Oh
CPC classification number: H01S3/10 , H01S3/10053 , H01S5/0085 , H01S5/02284 , H01S5/026 , H01S5/0265 , H01S5/141 , H01S5/142
Abstract: The present disclosure relates to a compact external cavity tunable laser apparatus. The laser apparatus includes a substrate, an external cavity tunable reflecting unit that reflects laser light entering from the outside on the substrate and selects and varies a wavelength of the reflected laser light, an optical fiber that outputs the laser light on the substrate; and an highly integrated light source that integrates the laser light input from the external cavity tunable reflecting unit using inclined input and output waveguides, a curved waveguide, and a straight waveguide to output the integrated laser light to the optical fiber in order to match an optical axis formed with the external cavity tunable reflecting unit with an optical axis formed with an optical fiber.
Abstract translation: 本公开涉及一种紧凑的外部可调谐激光装置。 该激光装置包括：基板，外部可调谐反射部，其反射从基板外部进入的激光，并选择并改变反射的激光的波长;将激光输出到基板上的光纤; 以及高度集成的光源，其使用倾斜的输入和输出波导，弯曲波导和直波导将来自外部腔体可调谐反射单元的激光输入，以将集成的激光输出到光纤以匹配光学 轴与外腔可调谐反射单元形成，光轴由光纤形成。
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公开(公告)号：US12068576B2
公开(公告)日：2024-08-20
申请号：US17313610
申请日：2021-05-06
Inventor： Oh Kee Kwon , Su Hwan Oh , Chul-Wook Lee , Kisoo Kim
IPC: H01S5/026 , G02B6/02 , H01S5/024 , H01S5/0625 , H01S5/125
CPC classification number: H01S5/0261 , G02B6/0208 , H01S5/02461 , H01S5/06256 , H01S5/125
Abstract: Provided are an optical waveguide device and a laser apparatus including the same. The optical waveguide device includes a peripheral part disposed on an edge region of a substrate, an air pocket disposed on a central region of the substrate within the peripheral part, an optical waveguide comprising a core layer, which is disposed on an upper portion of the substrate within the air pocket to extend in a first direction, and an electrode on the core layer, and a plurality of hinges disposed on the air pocket to connect the optical waveguide to the peripheral part in a second direction crossing the first direction.
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