JP2009531847A - 光検出器 - Google Patents
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- JP2009531847A JP2009531847A JP2009502218A JP2009502218A JP2009531847A JP 2009531847 A JP2009531847 A JP 2009531847A JP 2009502218 A JP2009502218 A JP 2009502218A JP 2009502218 A JP2009502218 A JP 2009502218A JP 2009531847 A JP2009531847 A JP 2009531847A
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- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
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- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910018885 Pt—Au Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/12—Active materials
- H10F77/124—Active materials comprising only Group III-V materials, e.g. GaAs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12004—Combinations of two or more optical elements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F30/00—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors
- H10F30/20—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors
- H10F30/21—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/40—Optical elements or arrangements
- H10F77/413—Optical elements or arrangements directly associated or integrated with the devices, e.g. back reflectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/544—Solar cells from Group III-V materials
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Receiving Elements (AREA)
Abstract
【解決手段】光検出器は導波路構造を備え、導波路構造は:光信号を搬送する光子を、対応する電気信号を搬送する電荷キャリアに変換する吸収体と;電気信号を搬送する電荷キャリアを輸送するキャリア収集層と;そしてキャリア収集層にじかに隣接し、かつ検出対象の光子を受信し、更に能動導波路とエバネッセント結合する副導波路と、を含む。光検出器のエピタキシャル構造における副/受動導波路によって、高速キャリア輸送材料の使用が可能になって、広い固有帯域幅が得られ、そしてエバネッセント結合機構に関連付けられる進行波法の使用が可能になって、応答性、飽和出力、及び帯域幅を大きくすることができる。これによって、検出器は極めて薄い吸収層を備えることができ、これは素子の固有帯域幅が広くなることを意味する。この構成を進行波法と組み合わせることにより、空乏層容量に起因する帯域幅に対する制限を解決することができるので、帯域幅が広くなり、応答性が高くなり、光検出器の出力が大きくなる。
【選択図】図1
Description
Journal of Lightwave Technology, vol. 23, pp. 1818−1827, 2005
光信号を搬送する光子を、対応する電気信号を搬送する電荷キャリアに変換する吸収体を含む能動導波路と;
電気信号を搬送する電荷キャリアを輸送するキャリア収集層と;そして
キャリア収集層にじかに隣接し、かつ5つよりも少ないモードを持続(support)させる副導波路と、を備え、副導波路は光信号を搬送する光子を受信し、かつ能動導波路とエバネッセント結合する。
Claims (18)
- 光信号を搬送する光子を、対応する電気信号を搬送する電荷キャリアに変換する吸収体を含む能動導波路と、
電気信号を搬送する電荷キャリアを輸送するキャリア収集層と、
キャリア収集層にじかに隣接し、かつ5つよりも少ないモードを持続させる副導波路と、を備え、前記副導波路は光信号を搬送する光子を受信し、かつ前記能動導波路とエバネッセント結合する、光検出器。 - 前記能動導波路から出て行く前記電荷キャリアの高速輸送が可能になる、請求項1記載の光検出器。
- 前記光検出器は、別の導波路を含む進行波構造を備え、前記別の導波路は、前記別の導波路に沿った電気信号の位相速度が能動導波路における光信号の位相速度とほぼ整合するように構成される、請求項1又は2記載の光検出器。
- 前記副導波路は、エピタキシャル構造の意図的にドープした層の内部に位置する、前の請求項のいずれか一項に記載の光検出器。
- 前記能動導波路から電荷キャリアを輸送する単一走行キャリア構造を備える、前の請求項のいずれか一項に記載の光検出器。
- 前記構造は積層状であり、そして前記能動導波路、前記副導波路、及びこれらの導波路に間に組み込まれる全ての中間層の合計膜厚は0.9μm〜1.3μmの範囲である、前の請求項のいずれか一項に記載の光検出器。
- 前記副導波路層の膜厚は0.5μm以下である、請求項6記載の光検出器。
- 前記能動導波路層の膜厚は0.03μm〜0.3μmの範囲である、請求項6又は7記載の光検出器。
- 前記中間層の膜厚は0.15μm〜0.35μmの範囲である、請求項6,7,又は8記載の光検出器。
- 前記副導波路層の幅は1〜8μmの範囲である、前の請求項のいずれか一項に記載の光検出器。
- 前記能動導波路は亜鉛をドープした半導体である、前の請求項のいずれか一項に記載の光検出器。
- 前記能動導波路はInGaAsを含む、前の請求項のいずれか一項に記載の光検出器。
- 前記能動導波路層の膜厚は0.1μm未満である、前の請求項のいずれか一項に記載の光検出器。
- 前記副導波路はn型InGaAsPを含む、前の請求項のいずれか一項に記載の光検出器。
- 前記キャリア収集層は、InP空乏層を前記能動導波路と前記副導波路との間に含む、前の請求項のいずれか一項に記載の光検出器。
- 前記能動導波路及び前記副導波路は少なくとも15μmの長さである、前の請求項のいずれか一項に記載の光検出器。
- 更に、検出される光子を光ファイバから前記副導波路に結合させるモード変換器を備える、前の請求項のいずれか一項に記載の光検出器。
- 前記モード変換器によって、結合が3dB未満の、好ましくは1dB未満の偏波感度で可能になる、請求項17記載の光検出器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0606540.3A GB0606540D0 (en) | 2006-03-31 | 2006-03-31 | Photodetector |
GB0606540.3 | 2006-03-31 | ||
PCT/GB2007/001160 WO2007113502A1 (en) | 2006-03-31 | 2007-03-30 | Photodetector |
Publications (3)
Publication Number | Publication Date |
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JP2009531847A true JP2009531847A (ja) | 2009-09-03 |
JP2009531847A5 JP2009531847A5 (ja) | 2016-07-14 |
JP5981086B2 JP5981086B2 (ja) | 2016-08-31 |
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JP2009502218A Expired - Fee Related JP5981086B2 (ja) | 2006-03-31 | 2007-03-30 | 光検出器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7851782B2 (ja) |
EP (1) | EP2005229B1 (ja) |
JP (1) | JP5981086B2 (ja) |
GB (1) | GB0606540D0 (ja) |
WO (1) | WO2007113502A1 (ja) |
Cited By (4)
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KR20160129541A (ko) * | 2015-04-30 | 2016-11-09 | 한국전자통신연구원 | 포토 다이오드 |
WO2017164042A1 (ja) * | 2016-03-23 | 2017-09-28 | 旭硝子株式会社 | 複合光導波路 |
WO2022219710A1 (ja) * | 2021-04-13 | 2022-10-20 | 日本電信電話株式会社 | 受光素子およびその製造方法 |
WO2023233718A1 (ja) * | 2022-06-03 | 2023-12-07 | 浜松ホトニクス株式会社 | 半導体受光素子 |
Families Citing this family (12)
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US8410420B1 (en) * | 2009-01-16 | 2013-04-02 | University Of Washington Through Its Center For Commercialization | Semiconductor travelling-wave evanescent waveguide photodetector |
US9040919B2 (en) * | 2010-10-25 | 2015-05-26 | Thomas E. Darcie | Photomixer-waveguide coupling tapers |
JP5742345B2 (ja) * | 2011-03-20 | 2015-07-01 | 富士通株式会社 | 受光素子および光受信モジュール |
KR101897257B1 (ko) | 2012-05-14 | 2018-09-11 | 한국전자통신연구원 | 광 검출기 및 그를 구비한 광학 소자 |
SG2013075379A (en) | 2012-10-08 | 2014-05-29 | Agency Science Tech & Res | P-i-n photodiode |
ITMI20122216A1 (it) | 2012-12-21 | 2014-06-22 | Milano Politecnico | Sistema di rivelazione di radiazione ottica includente un circuito di misura di parametri elettrici |
JP6295693B2 (ja) | 2014-02-07 | 2018-03-20 | ソニー株式会社 | 撮像装置 |
US9818896B1 (en) * | 2016-12-08 | 2017-11-14 | The Boeing Company | Graded infrared photodetector and method |
CN106405735B (zh) * | 2016-12-15 | 2019-01-25 | 中国计量大学 | 硅阵列结构的太赫兹波偏振分束器 |
US11588062B2 (en) * | 2020-10-08 | 2023-02-21 | Globalfoundries U.S. Inc. | Photodetectors including a coupling region with multiple tapers |
CN112310237A (zh) * | 2020-10-30 | 2021-02-02 | 中国科学院半导体研究所 | 波导耦合型单载流子探测器 |
CN114823940A (zh) * | 2022-04-29 | 2022-07-29 | 电子科技大学 | 斜入射光纤直接耦合的大横截面光波导探测器 |
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KR20160129541A (ko) * | 2015-04-30 | 2016-11-09 | 한국전자통신연구원 | 포토 다이오드 |
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JPWO2017164042A1 (ja) * | 2016-03-23 | 2019-01-31 | Agc株式会社 | 複合光導波路 |
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WO2022219710A1 (ja) * | 2021-04-13 | 2022-10-20 | 日本電信電話株式会社 | 受光素子およびその製造方法 |
JP7568072B2 (ja) | 2021-04-13 | 2024-10-16 | 日本電信電話株式会社 | 受光素子およびその製造方法 |
WO2023233718A1 (ja) * | 2022-06-03 | 2023-12-07 | 浜松ホトニクス株式会社 | 半導体受光素子 |
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EP2005229A1 (en) | 2008-12-24 |
EP2005229B1 (en) | 2019-06-26 |
JP5981086B2 (ja) | 2016-08-31 |
US7851782B2 (en) | 2010-12-14 |
WO2007113502A1 (en) | 2007-10-11 |
US20090184383A1 (en) | 2009-07-23 |
GB0606540D0 (en) | 2006-05-10 |
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