JP2022083779A - 光デバイス、光通信装置及び光デバイスの製造方法 - Google Patents
光デバイス、光通信装置及び光デバイスの製造方法 Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 437
- 238000004891 communication Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 91
- 239000010409 thin film Substances 0.000 claims abstract description 39
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 claims description 145
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 74
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 74
- 239000000463 material Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 238000005530 etching Methods 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 16
- 230000005684 electric field Effects 0.000 description 15
- 239000013307 optical fiber Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 10
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000001902 propagating effect Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- SDJLVPMBBFRBLL-UHFFFAOYSA-N dsp-4 Chemical compound ClCCN(CC)CC1=CC=CC=C1Br SDJLVPMBBFRBLL-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/03—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/035—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure
- G02F1/0356—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure controlled by a high-frequency electromagnetic wave component in an electric waveguide structure
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/03—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/0305—Constructional arrangements
- G02F1/0316—Electrodes
-
- 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
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/03—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/035—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/21—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 by interference
- G02F1/212—Mach-Zehnder type
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/21—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 by interference
- G02F1/225—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 by interference in an optical waveguide structure
- G02F1/2255—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 by interference in an optical waveguide structure controlled by a high-frequency electromagnetic component in an electric waveguide structure
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/127—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode travelling wave
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
3 DSP
4 光源
5 光変調器
21 第1のSi光導波路
24 第1のSiN光導波路
31 LN光導波路
32 信号電極
51 Si基板
51A 凹部
53 接地電極
52 支持基板
54 第1のバッファ層
55 薄膜LN基板
56 第2のバッファ層
Claims (9)
- Si(Silicon)基板と、
Si基板上に積層された接地電位の接地電極と、
前記接地電極上に積層された薄膜LN(Lithium Niobate)基板によって形成されるLN光導波路と、
前記LN光導波路を挟んで前記接地電極と対向する位置に配置され、高周波信号を印加する信号電極と
を有することを特徴とする光デバイス。 - 前記接地電極と前記薄膜LN基板との間に積層される第1のバッファ層と、
前記薄膜LN基板に積層され、前記LN光導波路を被覆する第2のバッファ層とをさらに有し、
前記信号電極は、
前記第2のバッファ層の表面の前記LN光導波路と重なる位置に配置される
ことを特徴とする請求項1に記載の光デバイス。 - 前記接地電極は、
前記信号電極と異なる材料で形成することを特徴とする請求項1又は2に記載の光デバイス。 - 前記Si基板上に形成された支持基板と、
前記支持基板上に形成されたSi光導波路と
を有し、
前記Si光導波路と前記LN光導波路との間を結合することを特徴とする請求項1~3の何れか一つに記載の光デバイス。 - 前記Si光導波路と前記LN光導波路との間を結合するSiN(Silicon Nitride)光導波路を有することを特徴とする請求項4に記載の光デバイス。
- 前記Si光導波路の出力段側がテーパー状に細く、かつ、前記SiN光導波路の出力段側がテーパー状に細くなるように形成し、
前記Si光導波路の出力段と前記SiN光導波路の入力段とを結合すると共に、前記SiN光導波路の出力段と前記LN光導波路の入力段とを結合することを特徴とする請求項5に記載の光デバイス。 - 前記Si光導波路の出力段側がテーパー状に細く、前記SiN光導波路の入力段側及び出力段側がテーパー状に細く、かつ、前記LN光導波路の入力段側がテーパー状に細くなるように形成し、
前記Si光導波路の出力段と前記SiN光導波路の入力段とを結合すると共に、前記SiN光導波路の出力段と前記LN光導波路の入力段とを結合することを特徴とする請求項5に記載の光デバイス。 - 電気信号に対する信号処理を実行するプロセッサと、
光を発生させる光源と、
前記プロセッサから出力される電気信号を用いて、前記光源から発生する光を変調する光デバイスとを有し、
前記光デバイスは、
Si(Silicon)基板と、
Si基板上に積層された接地電位の接地電極と、
前記接地電極上に積層された薄膜LN(Lithium Niobate)基板によって形成されるLN光導波路と、
前記LN光導波路を挟んで前記接地電極と対向する位置に配置され、高周波信号を印加する信号電極と
を有することを特徴とする光通信装置。 - Si基板と、前記Si基板上に形成されたSi光導波路と、前記Si光導波路を被覆するバッファ層とを有する第1の部材の表面を前記バッファ層から前記Si基板の一部までエッチングすることで凹部を形成し、
支持基板と、前記支持基板上に積層された接地電位の接地電極と、前記接地電極上に積層された薄膜LN(Lithium Niobate)基板によって形成されるLN光導波路と、前記LN光導波路を挟んで前記接地電極と対向する位置に配置され、高周波信号を印加する信号電極とを有する第2の部材を、前記Si光導波路と前記LN光導波路との光軸を合わせるように前記凹部内に実装する
ことを特徴とする光デバイスの製造方法。
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JP2020195308A JP2022083779A (ja) | 2020-11-25 | 2020-11-25 | 光デバイス、光通信装置及び光デバイスの製造方法 |
US17/496,304 US20220163827A1 (en) | 2020-11-25 | 2021-10-07 | Optical device, optical communication apparatus, and manufacturing method of the optical device |
CN202111221295.1A CN114545663A (zh) | 2020-11-25 | 2021-10-20 | 光器件、光通信设备及光器件的制造方法 |
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US11841563B2 (en) * | 2021-03-31 | 2023-12-12 | IMEC USA NANOELECTRONICS DESIGN CENTER, Inc. | Electro-optic modulators that include caps for optical confinement |
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JPH10300960A (ja) * | 1997-05-01 | 1998-11-13 | Nippon Telegr & Teleph Corp <Ntt> | Plc光送受信モジュール及びその製造方法 |
JP3846284B2 (ja) * | 2001-11-26 | 2006-11-15 | 株式会社トッパンNecサーキットソリューションズ | 光導波路の製造方法 |
US6671077B2 (en) * | 2002-04-16 | 2003-12-30 | Lucent Technologies Inc. | Method and apparatus for generating return-to-zero modulated optical signals |
EP2006723B1 (en) * | 2006-03-31 | 2016-08-17 | Sumitomo Osaka Cement Co., Ltd. | Light control element |
US9316785B2 (en) * | 2013-10-09 | 2016-04-19 | Skorpios Technologies, Inc. | Integration of an unprocessed, direct-bandgap chip into a silicon photonic device |
US9923105B2 (en) * | 2013-10-09 | 2018-03-20 | Skorpios Technologies, Inc. | Processing of a direct-bandgap chip after bonding to a silicon photonic device |
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US10718904B2 (en) * | 2017-04-26 | 2020-07-21 | University Of Central Florida Research Foundation, Inc. | Thin-film integration compatible with silicon photonics foundry production |
US10545291B1 (en) * | 2018-08-28 | 2020-01-28 | Cisco Technology, Inc. | Gain integration in Si photonic coherent modulators |
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