JPH06503902A - 光学デバイス - Google Patents
光学デバイスInfo
- Publication number
- JPH06503902A JPH06503902A JP4501199A JP50119992A JPH06503902A JP H06503902 A JPH06503902 A JP H06503902A JP 4501199 A JP4501199 A JP 4501199A JP 50119992 A JP50119992 A JP 50119992A JP H06503902 A JPH06503902 A JP H06503902A
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- multimode
- output
- waveguides
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
- G02B6/12007—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 forming wavelength selective elements, e.g. multiplexer, demultiplexer
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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
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
- G02B6/2813—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs based on multimode interference effect, i.e. self-imaging
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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
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/2935—Mach-Zehnder configuration, i.e. comprising separate splitting and combining means
- G02B6/29352—Mach-Zehnder configuration, i.e. comprising separate splitting and combining means in a light guide
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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
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/0315—Waveguide 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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4031—Edge-emitting structures
- H01S5/4068—Edge-emitting structures with lateral coupling by axially offset or by merging waveguides, e.g. Y-couplers
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08018—Mode suppression
- H01S3/0804—Transverse or lateral modes
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/082—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/22—Gases
- H01S3/223—Gases the active gas being polyatomic, i.e. containing two or more atoms
- H01S3/2232—Carbon dioxide (CO2) or monoxide [CO]
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Plasma & Fusion (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Optical Integrated Circuits (AREA)
- Semiconductor Lasers (AREA)
- Lasers (AREA)
Abstract
Description
Claims (11)
- 1.多モード導波路(20)を含む光学デバイス(10)であって、(a)基本 モード動作に適合した第1の結合導波路(18)が、前記多モード導波路(20 )の横断面の中心において、前記多モード導波路に設続され、 (b)各々に基本モード動作に適合した少なくとも2つの第2の結合導波路(2 2,24)が、接続中心が前記多モード導波路の横断面上に互いに間隔を置いて 前記多モード導波路(20)に接続され、 (c)前記結合導波路及び前記多モード導波路(18,20,22,24)の相 対寸法と相対位置決めとが、前記第1の結合導波路(18)の同位相の対称基本 モードとして伝搬する放射が前記多モード導波路(20)の対称モードだけを励 起するような相対寸法と相対位置決めとであり、前記多モード導波路内でそのよ うに励起されたモードが、前記多モード導波路(20)内の放射経路に沿ったモ ード分散によって、前記第2の結合導波路(22,24)の各々の基本モードを 励起することを特徴とする前記光学デバイス(10)。
- 2.前記結合導波路及び前記多モード導波路(18,20,22,24)が固体 誘電材料(12,14,16)内の中空部分として形成されることを特徴とする 請求項1に記載の光学デバイス(10)。
- 3.前記誘電材料(12,14,16)がアルミナであることを特徴とする請求 項2に記載の光学デバイス(10)。
- 4.前記結合導波路及び前記多モード導波路(142,146,148)が、基 板(170)から直立したリッジ形導波路として形成されることを特徴とする請 求項1に記載の光学デバイス(140)。
- 5.3元又は4元の半導体材料系の材料層(170,174,176,178, 180)で形成されることを特徴とする請求項4に記載の光学デバイス(140 )。
- 6.前記半導体材料系がA1I G21−x A3であることを特徴とする請求 項5に記載の光学デバイス(140)。
- 7.前記結合導波路と前記多モード導波路(18,20,22,24)が、共通 の1つの層の中に又は共通の1組の層の中に形成され、前記第2の結合導波路( 22,24)が前記多モード導波路の軸線(30)と概ね共面である接続中心( 32,34)を有することを特徴とする請求項1から6のいずれかに記載の光学 デバイス(10)。
- 8.前記多モード導波路(224)が、2つの互いに直交した横断方向において 多モードであり、前記第2の結合導波路(228a〜228d)がこの様な導波 路の2次元アレイとして配置されることを特徴とする請求項1から6のいずれか 一項に記載の光学デバイス(220)。
- 9.前記第2の結合導波路(22,24)が、レーザ利得媒質と、前記媒質を励 起するための手段とを含み、前記デバイスが、レーザ作用を得るための適切な整 相を伴った光学フィードバックに適合させられることを特徴とする請求項1から 8のいずれかに記載の光学デバイス(10)。
- 10.前記光学デバイスが、前記第1の結合導波路(110)から遠隔の位置で 、前記第2の結合導波路(112a,112b)に接続された第2の多モード導 波路(116)を含み、前記第2の多モード導波路(116)が、適切な整相を 与えることに適合させられることを特徴とする請求項9に記載の光学デバイス( 100)。
- 11.前記光学デバイスが、Mach−Zehnder干渉計として構成され、 補助多モード導波路(116)に前記多モード導波路(110)を接続し、更に 1対の外側出力導波路(120a,120b)の間の中央出力導波路(118) に前記多モード導波路(110)を接続する2つの第2の結合導波路(112a ,112b)と、前記第2の結合導波路の一方における光位相をその他方の光位 相に対して変化させるための手段とを含み、更に、前記結合導波路(112a、 112b)内の同位相の放射が前記中央出力導波路(118)に少なくとも概ね 閉じ込められた強さを生じさせ、且つ前記結合導波路(112a,112b)内 の相対的に逆相の放射が前記1対の外側出力導波路(120a,120b)内に 概ね等しい強さを生じさせるように、前記光学デバイスが適合させられることを 特徴とする請求項1から6のいずれか一項に記載の光学デバイス(100)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9027657.7 | 1990-12-20 | ||
GB909027657A GB9027657D0 (en) | 1990-12-20 | 1990-12-20 | Optical device |
PCT/GB1991/002129 WO1992011550A1 (en) | 1990-12-20 | 1991-12-02 | Optical device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002159768A Division JP3389242B2 (ja) | 1990-12-20 | 2002-05-31 | 光学デバイス |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06503902A true JPH06503902A (ja) | 1994-04-28 |
JP3370667B2 JP3370667B2 (ja) | 2003-01-27 |
Family
ID=10687341
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50119992A Expired - Lifetime JP3370667B2 (ja) | 1990-12-20 | 1991-12-02 | 光学デバイス |
JP2002159768A Expired - Lifetime JP3389242B2 (ja) | 1990-12-20 | 2002-05-31 | 光学デバイス |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002159768A Expired - Lifetime JP3389242B2 (ja) | 1990-12-20 | 2002-05-31 | 光学デバイス |
Country Status (7)
Country | Link |
---|---|
US (1) | US5410625A (ja) |
EP (1) | EP0563084B1 (ja) |
JP (2) | JP3370667B2 (ja) |
CA (1) | CA2096420C (ja) |
DE (1) | DE69131485T2 (ja) |
GB (1) | GB9027657D0 (ja) |
WO (1) | WO1992011550A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US6205163B1 (en) | 1997-08-18 | 2001-03-20 | Nec Corporation | Single-transverse-mode 1×N multi-mode interferometer type semiconductor laser device |
JP2005506572A (ja) * | 2001-10-20 | 2005-03-03 | キネティック リミテッド | 光フィルタ |
JP2005191364A (ja) * | 2003-12-26 | 2005-07-14 | Nec Corp | 半導体レーザー |
WO2010113921A1 (ja) * | 2009-03-31 | 2010-10-07 | 住友大阪セメント株式会社 | 光変調器 |
JP4728746B2 (ja) * | 2005-08-31 | 2011-07-20 | 古河電気工業株式会社 | マルチモード干渉カプラ、これを用いた光半導体素子およびマルチモード干渉カプラの設計方法 |
WO2011111726A1 (ja) * | 2010-03-10 | 2011-09-15 | 住友大阪セメント株式会社 | 光導波路素子 |
JP2015065406A (ja) * | 2013-08-30 | 2015-04-09 | 三菱電機株式会社 | 波長可変光源および波長可変光源モジュール |
Families Citing this family (61)
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GB9313823D0 (en) * | 1993-07-03 | 1993-08-18 | Secr Defence | Laser device |
JP3578351B2 (ja) * | 1993-11-04 | 2004-10-20 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴイ | マルチモード干渉結合器における強度特性及び位相特性の変化方法 |
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US5488696A (en) * | 1995-03-28 | 1996-01-30 | Brosnan; Kerry R. | Light - reflecting waveguide assemblies and process |
US5726804A (en) * | 1995-05-15 | 1998-03-10 | Rocky Mountain Research Center | Wavetrain stabilization and sorting |
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US6094285A (en) * | 1996-12-04 | 2000-07-25 | Trw Inc. | All optical RF signal channelizer |
US5862288A (en) * | 1997-04-21 | 1999-01-19 | The United States Of America As Represented By The Secretary Of The Army | Self-imaging waveguide devices for wavelength division multiplexing applications |
US5889906A (en) * | 1997-05-28 | 1999-03-30 | Lucent Technologies Inc. | Signal router with coupling of multiple waveguide modes for provicing a shaped multi-channel radiation pattern |
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- 1991-12-02 US US08/064,046 patent/US5410625A/en not_active Expired - Lifetime
- 1991-12-02 CA CA002096420A patent/CA2096420C/en not_active Expired - Lifetime
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JP2005506572A (ja) * | 2001-10-20 | 2005-03-03 | キネティック リミテッド | 光フィルタ |
JP2005191364A (ja) * | 2003-12-26 | 2005-07-14 | Nec Corp | 半導体レーザー |
JP4582289B2 (ja) * | 2003-12-26 | 2010-11-17 | 日本電気株式会社 | 半導体レーザー |
JP4728746B2 (ja) * | 2005-08-31 | 2011-07-20 | 古河電気工業株式会社 | マルチモード干渉カプラ、これを用いた光半導体素子およびマルチモード干渉カプラの設計方法 |
WO2010113921A1 (ja) * | 2009-03-31 | 2010-10-07 | 住友大阪セメント株式会社 | 光変調器 |
JP2010237376A (ja) * | 2009-03-31 | 2010-10-21 | Sumitomo Osaka Cement Co Ltd | 光変調器 |
JP4745415B2 (ja) * | 2009-03-31 | 2011-08-10 | 住友大阪セメント株式会社 | 光変調器 |
US9329340B2 (en) | 2009-03-31 | 2016-05-03 | Sumitomo Osaka Cement Co., Ltd. | Optical modulator |
WO2011111726A1 (ja) * | 2010-03-10 | 2011-09-15 | 住友大阪セメント株式会社 | 光導波路素子 |
US8923658B2 (en) | 2010-03-10 | 2014-12-30 | Sumitomo Osaka Cement Co., Ltd. | Optical waveguide device |
JP2015065406A (ja) * | 2013-08-30 | 2015-04-09 | 三菱電機株式会社 | 波長可変光源および波長可変光源モジュール |
Also Published As
Publication number | Publication date |
---|---|
EP0563084A1 (en) | 1993-10-06 |
DE69131485T2 (de) | 1999-11-18 |
EP0563084B1 (en) | 1999-07-28 |
DE69131485D1 (de) | 1999-09-02 |
JP2003050330A (ja) | 2003-02-21 |
CA2096420C (en) | 2002-05-07 |
JP3370667B2 (ja) | 2003-01-27 |
JP3389242B2 (ja) | 2003-03-24 |
WO1992011550A1 (en) | 1992-07-09 |
GB9027657D0 (en) | 1991-02-13 |
CA2096420A1 (en) | 1992-06-21 |
US5410625A (en) | 1995-04-25 |
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