JP7339563B2 - 光送信器 - Google Patents
光送信器 Download PDFInfo
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- JP7339563B2 JP7339563B2 JP2021548093A JP2021548093A JP7339563B2 JP 7339563 B2 JP7339563 B2 JP 7339563B2 JP 2021548093 A JP2021548093 A JP 2021548093A JP 2021548093 A JP2021548093 A JP 2021548093A JP 7339563 B2 JP7339563 B2 JP 7339563B2
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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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- H—ELECTRICITY
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- 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
- H01S5/0265—Intensity modulators
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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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/0601—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium comprising an absorbing region
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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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- 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
- H01S5/1053—Comprising an active region having a varying composition or cross-section in a specific direction
- H01S5/1064—Comprising an active region having a varying composition or cross-section in a specific direction varying width along the optical axis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
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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
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
- H01S5/2205—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers
- H01S5/2222—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers having special electric properties
- H01S5/2224—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers having special electric properties semi-insulating semiconductors
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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
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
- H01S5/227—Buried mesa structure ; Striped active layer
- H01S5/2275—Buried mesa structure ; Striped active layer mesa created by etching
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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
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
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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
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
- H01S5/343—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/34306—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength longer than 1000nm, e.g. InP based 1300 and 1500nm lasers
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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
- H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Semiconductor Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
その後、再成長により素子全面にp-InPクラッド層およびコンタクト層を成長した。クラッド層の厚さは、電極領域に光のフィールドが掛からないように、本実施例では2.0μmを用いた。次に、メサ構造をエッチングによって形成した。この工程において、各領域の導波路幅はフォト工程で任意のパターンが形成され、一括のエッチング工程で形成される。SOA領域においてはマスクの幅を連続的に狭くすることでSOA部におけるテーパ構造を実現した。本開示のAXELによる光送信器のように、SOAでテーパ形状の導波路を備える場合でも、上述の作製工程は従来と同一であり工程負荷やコストを増やすことなく作製できる。
作製した素子を用いて10Gbit/sの変調特性評価を行った。変調信号はNRZ形式で、疑似ランダム2進数シーケンスPRBS231-1を用いた。作製したすべてのAXELにおいて、DFBレーザの電流値を80 mA、EA変調器への印可電圧を-1.5V、SOAの電流値を100mAに設定した。また、EA変更器に印可する信号の振幅電圧Vppは1.5Vである。比較のために作製したテーパ構造を持たないSOAは、それぞれ、活性層の体積がテーパ構造を持つSOAと同じとなるように設計されている。したがって、信号光の入力が無い状態で同じ電流値をSOAに注入したときの、全電流値で求めたキャリア密度は同一となる。
Claims (4)
- 基板上に、
多重量子井戸を有する活性領域を有する分布帰還型(DFB)レーザと、
前記DFBレーザの発振光を変調する電界吸収型(EA)変調器と、
前記DFBレーザと同一組成の活性領域を有し、前記EA変調器からの信号光を増幅する半導体光増幅器(SOA)とがモノリシックに集積された光送信器であって、
前記SOAの光導波構造は、光導波方向に垂直な断面における前記SOAの活性領域の幅が前記光導波方向に沿って徐々に狭まるテーパ構造であって、前記SOAの全領域にわたるテーパ構造であることを特徴とする光送信器。 - 前記DFBレーザおよび前記SOAの光導波構造は、同一の層構造を有することを特徴とする請求項1に記載の光送信器。
- 前記テーパ構造は、前記SOAの活性領域の幅が線形的に単調減少することを特徴とする請求項1または2に記載の光送信器。
- 前記テーパ構造は、前記SOAの活性領域の幅が0.8μmから2.1μmの間のいずれかの範囲内において徐々に狭まるよう構成されたことを特徴とする請求項1、2または3に記載の光送信器。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2019/037957 WO2021059448A1 (ja) | 2019-09-26 | 2019-09-26 | 光送信器 |
Publications (2)
Publication Number | Publication Date |
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JPWO2021059448A1 JPWO2021059448A1 (ja) | 2021-04-01 |
JP7339563B2 true JP7339563B2 (ja) | 2023-09-06 |
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JP2021548093A Active JP7339563B2 (ja) | 2019-09-26 | 2019-09-26 | 光送信器 |
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US (1) | US20220376474A1 (ja) |
EP (1) | EP4037114B1 (ja) |
JP (1) | JP7339563B2 (ja) |
CN (1) | CN114450861A (ja) |
WO (1) | WO2021059448A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012004441A (ja) | 2010-06-18 | 2012-01-05 | Furukawa Electric Co Ltd:The | 光増幅装置 |
JP2012069799A (ja) | 2010-09-24 | 2012-04-05 | Furukawa Electric Co Ltd:The | 半導体光導波路素子およびその製造方法 |
US20170179679A1 (en) | 2015-12-16 | 2017-06-22 | Electronics And Telecommunications Research Institute | Semiconductor optical device |
JP2018074098A (ja) | 2016-11-04 | 2018-05-10 | 日本電信電話株式会社 | 半導体光集積回路 |
JP2018107310A (ja) | 2016-12-27 | 2018-07-05 | 古河電気工業株式会社 | 半導体レーザモジュール |
Family Cites Families (18)
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JPH08116124A (ja) * | 1994-10-13 | 1996-05-07 | Hitachi Ltd | 半導体光素子 |
US6687278B1 (en) * | 1999-09-02 | 2004-02-03 | Agility Communications, Inc. | Method of generating an optical signal with a tunable laser source with integrated optical amplifier |
CN1182666C (zh) * | 2002-04-29 | 2004-12-29 | 清华大学 | 减少注入锁模光纤环激光器时钟提取中的码型效应的装置 |
JP3890291B2 (ja) * | 2002-11-28 | 2007-03-07 | 日本オプネクスト株式会社 | 電界吸収型変調器 |
WO2010038262A1 (ja) * | 2008-10-03 | 2010-04-08 | 富士通株式会社 | 光増幅制御装置、半導体光増幅器の制御方法、及び光伝送装置 |
WO2010073392A1 (ja) * | 2008-12-26 | 2010-07-01 | 富士通株式会社 | 光信号発生装置及びその調整方法 |
CN101710670A (zh) * | 2009-05-15 | 2010-05-19 | 长春理工大学 | 带有限制光反馈结构分别驱动的发射波长为808nm锥形半导体激光器 |
CN102055135B (zh) * | 2009-11-04 | 2013-09-04 | 中国科学院半导体研究所 | 锥形光子晶体量子级联激光器及其制作方法 |
CN102419460B (zh) * | 2011-09-16 | 2014-09-03 | 清华大学 | 耦合波导、其制作方法及应用其的半导体光电子器件 |
JP5823920B2 (ja) * | 2012-06-13 | 2015-11-25 | 日本電信電話株式会社 | 半導体光集積素子 |
JPWO2015107960A1 (ja) * | 2014-01-14 | 2017-03-23 | 日本碍子株式会社 | 外部共振器型発光装置 |
CA2999682C (en) * | 2015-09-29 | 2020-07-14 | Nippon Telegraph And Telephone Corporation | Semiconductor laser device |
JP6654468B2 (ja) * | 2016-02-29 | 2020-02-26 | 日本ルメンタム株式会社 | 光送信モジュール |
CN106058638A (zh) * | 2016-06-01 | 2016-10-26 | 中国科学院半导体研究所 | 一种用于输出飞秒脉冲的锁模激光器 |
CN106961071B (zh) * | 2017-04-27 | 2019-12-24 | 中国科学院长春光学精密机械与物理研究所 | 一种基于脊形有源区弱波导的半导体光放大器 |
JP2019004093A (ja) * | 2017-06-19 | 2019-01-10 | 日本電信電話株式会社 | 半導体光集積装置 |
CN107611772B (zh) * | 2017-09-25 | 2020-07-28 | 清华大学 | 电吸收调制激光器及其制备方法 |
CN108879321A (zh) * | 2018-09-12 | 2018-11-23 | 成都微泰光芯技术有限公司 | 一种集成soa的eml芯片 |
-
2019
- 2019-09-26 WO PCT/JP2019/037957 patent/WO2021059448A1/ja unknown
- 2019-09-26 US US17/762,217 patent/US20220376474A1/en active Pending
- 2019-09-26 EP EP19946661.6A patent/EP4037114B1/en active Active
- 2019-09-26 CN CN201980100790.1A patent/CN114450861A/zh active Pending
- 2019-09-26 JP JP2021548093A patent/JP7339563B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012004441A (ja) | 2010-06-18 | 2012-01-05 | Furukawa Electric Co Ltd:The | 光増幅装置 |
JP2012069799A (ja) | 2010-09-24 | 2012-04-05 | Furukawa Electric Co Ltd:The | 半導体光導波路素子およびその製造方法 |
US20170179679A1 (en) | 2015-12-16 | 2017-06-22 | Electronics And Telecommunications Research Institute | Semiconductor optical device |
JP2018074098A (ja) | 2016-11-04 | 2018-05-10 | 日本電信電話株式会社 | 半導体光集積回路 |
JP2018107310A (ja) | 2016-12-27 | 2018-07-05 | 古河電気工業株式会社 | 半導体レーザモジュール |
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Publication number | Publication date |
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CN114450861A (zh) | 2022-05-06 |
US20220376474A1 (en) | 2022-11-24 |
EP4037114A4 (en) | 2023-06-07 |
WO2021059448A1 (ja) | 2021-04-01 |
EP4037114B1 (en) | 2024-05-01 |
EP4037114A1 (en) | 2022-08-03 |
JPWO2021059448A1 (ja) | 2021-04-01 |
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