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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
发明人： OH Kee Kwon , Su Hwan Oh , Chul-Wook Lee , Kisoo Kim
IPC分类号： H01S5/125 , H01S5/024 , H01S5/026 , H01S5/12 , H01S5/065 , H01S5/0625 , H01S5/042 , H01S5/06 , H01S5/02
摘要： 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
发明人： Oh Kee Kwon , Chul-Wook Lee , Su Hwan Oh , Kisoo Kim
摘要： 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：US11710938B2
公开(公告)日：2023-07-25
申请号：US17213359
申请日：2021-03-26
发明人： Oh Kee Kwon , Su Hwan Oh , Kisoo Kim , Chul-Wook Lee
CPC分类号： H01S5/0611 , H01S5/1209 , H01S5/1218 , H01S5/2228 , H01S5/34 , H04B10/503
摘要： Disclosed are a wavelength-selectable laser diode and an optical communication apparatus including the same. The wavelength-selectable laser diode includes a substrate, which includes a gain region, a tuning region spaced apart from the gain region, and a phase adjusting region between the tuning region and the gain region, a waveguide layer on the substrate, a clad layer on the waveguide layer, and gratings disposed on the substrate or the clad layer in the gain region and the tuning region.
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公开(公告)号：US10935817B2
公开(公告)日：2021-03-02
申请号：US16584363
申请日：2019-09-26
发明人： Oh Kee Kwon , Kisoo Kim , Su Hwan Oh , Chul-Wook Lee
IPC分类号： G02F1/01
摘要： 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：US12068576B2
公开(公告)日：2024-08-20
申请号：US17313610
申请日：2021-05-06
发明人： Oh Kee Kwon , Su Hwan Oh , Chul-Wook Lee , Kisoo Kim
IPC分类号： H01S5/026 , G02B6/02 , H01S5/024 , H01S5/0625 , H01S5/125
CPC分类号： H01S5/0261 , G02B6/0208 , H01S5/02461 , H01S5/06256 , H01S5/125
摘要： 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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公开(公告)号：US09348195B2
公开(公告)日：2016-05-24
申请号：US14951311
申请日：2015-11-24
发明人： Oh Kee Kwon , Kwang Ryong Oh , minhyup Song , Chul-Wook Lee , Jang Uk Shin , Young-Tak Han
CPC分类号： G02F1/3532 , G02F1/365 , G02F1/383 , G02F2001/354 , G02F2203/56
摘要： A method of operating a wavelength swept source apparatus includes generating a single mode light, and generating a basic optical comb including light rays having identical frequency differences with adjacent light rays by modulating the generated single mode light. The method further includes generating other optical combs that include the same number of light rays as that of light rays of the optical comb that has a frequency band different from that of the basic optical comb, and is distributed in a frequency band wider than that in which the basic optical comb is distributed, by modulating the light rays of the basic optical comb. The light rays of the basic optical comb and the light rays included in the other optical combs are sequentially emitted according to frequencies of the light rays of the basic optical comb and the light rays included in the other optical combs.
摘要翻译： 操作波长扫描源装置的方法包括：生成单模光，并通过调制所生成的单模光，产生包括具有与相邻光线相同频率差的光的基本光梳。 该方法还包括生成包括与具有与基本光梳的频带不同的频带的光梳的光线相同数量的光束的其他光梳，并且分布在比 通过调制基本光梳的光线，分配基本光梳。 基本光梳的光线和包含在其他光梳中的光线根据基本光梳的光线和包含在其他光梳中的光线的频率依次发射。
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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
发明人： Oh Kee Kwon , Kisoo Kim , Su Hwan Oh , Chul-Wook Lee
IPC分类号： G02F1/01
摘要： 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：US12062884B2
公开(公告)日：2024-08-13
申请号：US17182976
申请日：2021-02-23
发明人： Oh Kee Kwon , Kisoo Kim , Su Hwan Oh , Chul-Wook Lee
CPC分类号： H01S5/06256 , H01S5/026 , H01S5/04256 , H01S5/0625 , H01S5/068 , H01S5/227 , H01S5/06258 , H01S5/1007 , H01S5/18363
摘要： 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
发明人： Oh Kee Kwon , Su Hwan Oh , Chul-Wook Lee , Kisoo Kim
IPC分类号： H01S5/125 , H01S5/024 , H01S5/026 , H01S5/12 , H01S5/065 , H01S5/0625 , H01S5/06 , H01S5/02 , H01S5/042
摘要： 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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