KR101930369B1 - 실리콘 벌크 기판을 활용한 광 인터커넥트 장치 및 광소자 집적 장치 - Google Patents
실리콘 벌크 기판을 활용한 광 인터커넥트 장치 및 광소자 집적 장치 Download PDFInfo
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- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
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- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/015—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
- G02F1/025—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction in an optical waveguide structure
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/015—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 광 인터커넥트 장치 및 광소자 집적 장치에서 광이 도파되는 경로를 개요적으로 나타낸 도면이다.
도 3은 본 발명의 일 실시예에 따른 광 인터커넥트 장치 및 광소자 집적 장치에서 모드 컨버터의 평면도이다.
도 4는 본 발명의 일 실시예에 따른 광 인터커넥트 장치 및 광소자 집적 장치에서 다양한 구성요소에 대한 모드 프로파일을 나타낸 도면들이다.
도 5는 본 발명의 일 실시예에 따른 광 인터커넥트 장치 및 광소자 집적 장치에서 실시한 전자기파 시뮬레이션 결과이다.
도 6는 본 발명의 일 실시예에 따른 광 인터커넥트 장치 및 광소자 집적 장치의 빛의 전파 결과를 나타내는 도면이다.
20 : 활성층에 형성된 제 1 소자층
30 : 모드 컨버터
40 : 제 2 소자층
Claims (9)
- 기판; 상기 기판 상의 활성층에 형성된 제 1 소자층; 상기 제 1 소자층 상에 배치되되 광신호가 전송되는 제 2 소자층; 및 상기 제 1 소자층과 상기 제 2 소자층 간의 유효 굴절률 차이를 해소하고 모드 프로파일을 매칭시키기 위하여 상기 제 1 소자층과 상기 제 2 소자층 사이에 개재된 모드 컨버터;를 포함하고,
상기 제 1 소자층, 상기 모드 컨버터 및 상기 제 2 소자층은 상기 기판 상의 서로 다른 이격된 평면에 각각 순차적으로 배치되되, 상기 모드 컨버터의 일단은 상기 제 2 소자층의 일부와 오버랩(overlap)되도록 배치되며, 상기 모드 컨버터의 타단은 상기 제 1 소자층의 일부와 오버랩되도록 배치되며,
상기 모드 컨버터는 폭이 서로 다른 상기 일단 및 타단을 포함하되, 상기 일단 및 타단 사이를 연결하는 테이퍼(taper) 영역을 더 포함하는,
광 인터커넥트 장치. - 제 1 항에 있어서,
상기 기판은 제 1 굴절률을 가지는 물질로 이루어지는 벌크 기판이며, 상기 제 1 소자층은 제 2 굴절률을 가지는 물질로 이루어지며, 상기 모드 컨버터는 제 3 굴절률을 가지는 물질로 이루어지며, 상기 제 2 소자층은 제 4 굴절률을 가지는 물질로 이루어지되,
상기 활성층에 형성된 제 1 소자층의 도파관 모드의 제 1 유효 굴절률과 상기 모드 컨버터 타단의 도파관 모드의 유효 굴절률은 상기 제 1 소자층과 상기 모드 컨버터 타단에서 디렉셔널 커플링(directional coupling)이 일어날 수 있도록 결정되며,
상기 제 2 소자층의 도파관 모드의 제 2 유효 굴절률과 상기 모드 컨버터 일단의 도파관 모드의 유효 굴절률은 상기 제 2 소자층과 상기 모드 컨버터 일단에서 디렉셔널 커플링(directional coupling)이 일어날 수 있도록 결정되며,
상기 제 1 유효 굴절률은 상기 제 1 굴절률보다 크고 상기 제 2 굴절률보다 작으며, 상기 제 2 유효 굴절률은 상기 제 3 굴절률 및 상기 제 4 굴절률 보다 작은,
광 인터커넥트 장치. - 제 2 항에 있어서,
상기 제 1 굴절률을 가지는 물질은 실리콘이며, 상기 제 2 굴절률을 가지는 물질은 게르마늄이며, 상기 제 3 굴절률을 가지는 물질은 게르마늄이며, 상기 제 4 굴절률을 가지는 물질은 실리콘, 실리콘질화물 또는 실리콘산화질화물 이며, 상기 기판은 SOI 기판이 아닌 벌크 실리콘 기판인, 광 인터커넥트 장치. - 삭제
- 제 1 항에 있어서,
상기 활성층에 형성된 제 1 소자층의 일부와 오버랩되는 상기 모드 컨버터의 타단의 폭은 상기 제 2 소자층의 일부와 오버랩되는 상기 모드 컨버터의 일단의 폭보다 더 큰, 광 인터커넥트 장치. - 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,
상기 기판, 상기 활성층에 형성된 제 1 소자층, 상기 제 2 소자층 및 상기 모드 컨버터 사이의 이격 공간을 충전하는 절연체층을 더 포함하는, 광 인터커넥트 장치. - 벌크 실리콘 기판; 상기 벌크 실리콘 기판 상에 형성된 능동 광소자; 상기 능동 광소자 상에 배치되되 광신호가 전송되는 제 2 소자층; 및 상기 능동 광소자의 활성층에 형성된 제 1 소자층과 상기 제 2 소자층 간의 유효 굴절률 차이를 해소하고 모드 프로파일을 매칭시키기 위하여 상기 능동 광소자와 상기 제 2 소자층 사이에 개재된 모드 컨버터;를 포함하고,
상기 능동 광소자, 상기 모드 컨버터 및 상기 제 2 소자층은 상기 기판 상의 서로 다른 이격된 평면에 각각 순차적으로 배치되되, 상기 모드 컨버터의 일단은 상기 제 2 소자층의 일부와 오버랩(overlap)되도록 배치되며, 상기 모드 컨버터의 타단은 상기 능동 광소자의 활성층에 형성된 제 1 소자층 일부와 오버랩되도록 배치되며,
상기 모드 컨버터는 폭이 서로 다른 상기 일단 및 타단을 포함하되, 상기 일단 및 타단 사이를 연결하는 테이퍼(taper) 영역을 더 포함하는,
광소자 집적 장치. - 삭제
- 삭제
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EP3153899B1 (en) * | 2015-10-09 | 2024-07-31 | Huawei Technologies Research & Development Belgium NV | Optical coupling scheme |
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US11067750B2 (en) * | 2019-01-28 | 2021-07-20 | Cisco Technology, Inc. | Silicon photonics platform with integrated oxide trench edge coupler structure |
US11209592B2 (en) * | 2020-06-02 | 2021-12-28 | Nexus Photonics Llc | Integrated active devices with enhanced optical coupling to dielectric waveguides |
CN112394450B (zh) * | 2020-12-01 | 2021-09-03 | 北京邮电大学 | 模式转换器及其制造方法 |
US11719883B1 (en) * | 2022-02-18 | 2023-08-08 | Nexus Photonics Inc | Integrated GaAs active devices with improved optical coupling to dielectric waveguides |
US20240369763A1 (en) * | 2022-08-12 | 2024-11-07 | Purdue Research Foundation | 3d tapered nanophotonic waveguide to fiber edge coupler |
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