JP6758546B1 - 半導体光集積素子およびその製造方法 - Google Patents
半導体光集積素子およびその製造方法 Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000012792 core layer Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 230000001902 propagating effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 15
- 230000010354 integration Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 28
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 8
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 8
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 5
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- 229910052737 gold Inorganic materials 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/026—Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
- H01S5/0262—Photo-diodes, e.g. transceiver devices, bidirectional devices
- H01S5/0264—Photo-diodes, e.g. transceiver devices, bidirectional devices for monitoring the laser-output
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4286—Optical modules with optical power monitoring
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- 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
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- H—ELECTRICITY
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- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0425—Electrodes, e.g. characterised by the structure
- H01S5/04256—Electrodes, e.g. characterised by the structure characterised by the configuration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/1003—Waveguide having a modified shape along the axis, e.g. branched, curved, tapered, voids
- H01S5/1014—Tapered waveguide, e.g. spotsize converter
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- 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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/30—Optical coupling means for use between fibre and thin-film device
- G02B6/305—Optical coupling means for use between fibre and thin-film device and having an integrated mode-size expanding section, e.g. tapered waveguide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/12—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
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Abstract
Description
図1は、実施の形態1に係る半導体光集積素子の構成を示す共振器方向の断面図であり、図2は、上面図である。図3は、図2のAAの矢視位置での半導体光集積素子の断面図である。
C=εε0S/d
で表わされる。例えば、絶縁膜がSiO2であって、絶縁膜厚さdが0.2μm、比誘電率εが3.8、面積Sが1.5E−7m2の場合、Cは50.5pFとなる。
V=100pF/(C+100pF)V0
となり(V0は外部から印加されるサージ電圧)、上記の例の場合、モニタPDへ印加されるサージ電圧は約33%低減される。
実施の形態1では、モニタPD部50のPDアノード電極13とPDカソード電極15の一部の領域が絶縁膜16bを介して対向する場合について示したが、実施の形態2では、モニタPD部のPDカソード電極と半導体レーザ部の表面側電極とが対向する場合について示す。
実施の形態2では、モニタPD部50のPDカソード電極15と半導体レーザ部60の表面側電極とが対向する場合について示したが、実施の形態3では、モニタPD部のPDアノード電極と半導体レーザ部の表面側電極とが対向する場合について示す。
Claims (7)
- 半導体基板の表面に形成された半導体レーザ部と、
前記半導体レーザ部から出射されたレーザ光を伝搬するためのコア層を有する光導波路が設けられた光伝搬部と、
前記光伝搬部の前記レーザ光の伝搬方向に対して側方に設けられたモニタフォトダイオード部と
を備え、
前記モニタフォトダイオード部の一の電極の一部の領域は、前記モニタフォトダイオード部の他の電極の一部の領域、および/または前記半導体レーザ部の表面側の電極の一部の領域と絶縁膜のみを挟んで対向していることを特徴とする半導体光集積素子。 - 前記一の電極はアノード電極であり、前記他の電極はカソード電極であることを特徴とする請求項1に記載の半導体光集積素子。
- 前記一の電極はカソード電極であり、前記他の電極はアノード電極であることを特徴とする請求項1に記載の半導体光集積素子。
- 前記光伝搬部の前記光導波路は、前記レーザ光の伝搬方向に先細りするテーパー形状であるコア層を有することを特徴とする請求項1から請求項3のいずれか1項に記載の半導体光集積素子。
- 半導体基板の表面に形成された半導体レーザ部から出射されたレーザ光を伝搬するためのコア層を有する光導波路部が設けられた光伝搬部に、前記光伝搬部の前記レーザ光の伝搬方向に対して側方に設けられたモニタフォトダイオード部を形成する工程を備え、
前記モニタフォトダイオード部を形成する工程は、
前記モニタフォトダイオード部の一の電極の一部の領域が、前記モニタフォトダイオード部の他の電極一部の領域、および/または半導体レーザ部の表面側の電極の一部の領域と絶縁膜のみを挟んで対向するように形成することを特徴とする半導体光集積素子の製造方法。 - 前記一の電極はアノード電極であり、前記他の電極はカソード電極であることを特徴とする請求項5に記載の半導体光集積素子の製造方法。
- 前記一の電極はカソード電極であり、前記他の電極はアノード電極であることを特徴とする請求項5に記載の半導体光集積素子の製造方法。
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PCT/JP2020/001274 WO2021144916A1 (ja) | 2020-01-16 | 2020-01-16 | 半導体光集積素子およびその製造方法 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63222485A (ja) * | 1987-03-12 | 1988-09-16 | Kokusai Denshin Denwa Co Ltd <Kdd> | モニタ付分布帰還形半導体レ−ザ |
JPH04307783A (ja) * | 1991-01-23 | 1992-10-29 | Philips Gloeilampenfab:Nv | オプト−エレクトロニク半導体デバイス |
US6453105B1 (en) * | 2000-10-04 | 2002-09-17 | Agere Systems Guardian Corp | Optoelectronic device with power monitoring tap |
JP2015122440A (ja) * | 2013-12-24 | 2015-07-02 | 富士通株式会社 | 光半導体装置及びその製造方法 |
JP2016096310A (ja) * | 2014-11-17 | 2016-05-26 | 三菱電機株式会社 | 半導体光素子およびその製造方法 |
WO2019069359A1 (ja) * | 2017-10-03 | 2019-04-11 | 三菱電機株式会社 | 半導体光集積素子 |
-
2020
- 2020-01-16 US US17/771,104 patent/US20220376464A1/en active Pending
- 2020-01-16 WO PCT/JP2020/001274 patent/WO2021144916A1/ja active Application Filing
- 2020-01-16 JP JP2020526168A patent/JP6758546B1/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63222485A (ja) * | 1987-03-12 | 1988-09-16 | Kokusai Denshin Denwa Co Ltd <Kdd> | モニタ付分布帰還形半導体レ−ザ |
JPH04307783A (ja) * | 1991-01-23 | 1992-10-29 | Philips Gloeilampenfab:Nv | オプト−エレクトロニク半導体デバイス |
US6453105B1 (en) * | 2000-10-04 | 2002-09-17 | Agere Systems Guardian Corp | Optoelectronic device with power monitoring tap |
JP2015122440A (ja) * | 2013-12-24 | 2015-07-02 | 富士通株式会社 | 光半導体装置及びその製造方法 |
JP2016096310A (ja) * | 2014-11-17 | 2016-05-26 | 三菱電機株式会社 | 半導体光素子およびその製造方法 |
WO2019069359A1 (ja) * | 2017-10-03 | 2019-04-11 | 三菱電機株式会社 | 半導体光集積素子 |
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US20220376464A1 (en) | 2022-11-24 |
JPWO2021144916A1 (ja) | 2021-07-22 |
WO2021144916A1 (ja) | 2021-07-22 |
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