JP4777663B2 - 光アイソレータ - Google Patents
光アイソレータ Download PDFInfo
- Publication number
- JP4777663B2 JP4777663B2 JP2005007706A JP2005007706A JP4777663B2 JP 4777663 B2 JP4777663 B2 JP 4777663B2 JP 2005007706 A JP2005007706 A JP 2005007706A JP 2005007706 A JP2005007706 A JP 2005007706A JP 4777663 B2 JP4777663 B2 JP 4777663B2
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- optical
- waveguide
- magnetic field
- optical isolator
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- G02B6/29331—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 evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
-
- 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
-
- 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
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
-
- 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
- G02F1/09—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 magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—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 magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
- G02F1/0955—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 magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure used as non-reciprocal devices, e.g. optical isolators, circulators
-
- 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
- G02B2006/12083—Constructional arrangements
- G02B2006/12097—Ridge, rib or the like
-
- 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
- G02B2006/12083—Constructional arrangements
- G02B2006/12104—Mirror; Reflectors or the like
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/15—Function characteristic involving resonance effects, e.g. resonantly enhanced interaction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Integrated Circuits (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
最も単純なデバイスは、線形偏光光で動作し、2個の偏光フィルタと、偏光フィルタ間に位置するファラデー回転子とから成る。「通過方向」にデバイスに入射する光は、第1偏光フィルタを通過するように調整された偏光を有する。ファラデー回転子は、光が阻止されずに第2偏光フィルタを通過するように、この光の偏光方向をファラデー回転子により回転させる。第2偏光を通過し、逆方向に移動する光の偏光は、ファラデー回転子により、第1偏光フィルタにより阻止される方向に回転される。
式中、neは、マイクロディスク共振器11のモードの有効指数であり、dはマイクロディスク共振器11の直径であり、mは整数値である。共振モードの自由スペクトル範囲(free spectral range)は、次式により与えられる。
11 共振器(マイクロディスク共振器)
12 第2光導波路
13 第1光導波路
15 強磁性材料
20 光アイソレータ
21 共振器(拡張ディスク共振器)
22 強磁性金属の層
110 磁界発生器
200 光アイソレータ
201 共振器(折り返し空洞共振器)
275 強磁性材料の層
Claims (12)
- 第1光導波路と、
第2光導波路と、
前記第1および第2光導波路に結合された共振器とを含み、
前記共振器が、印加磁界中に配置される強磁性材料の層を含み、前記層内で屈折率の非対称性を生じさせ、その結果、前記共振器が前記第1光導波路から前記第2光導波路へ伝わる光に対して波長λで共振し、前記第2光導波路から前記第1光導波路へ伝わる光に対して波長λで共振しない、光アイソレータ。 - 前記共振器がマイクロディスク共振器からなる、請求項1に記載の光アイソレータ。
- 前記共振器が折り返し空洞共振器からなる、請求項1に記載の光アイソレータ。
- 前記共振器が、前記第1光導波路のエッジに平行なエッジを備える、請求項1に記載の光アイソレータ。
- 前記強磁性材料がFe:InPからなる、請求項1〜4の何れかに記載の光アイソレータ。
- 前記強磁性材料が、前記共振器周囲の光信号の伝播方向に沿って磁界Bを生成する正味磁化を有する、請求項1〜5の何れかに記載の光アイソレータ。
- 正味磁化が前記強磁性材料上に形成される、請求項1〜6の何れかに記載の光アイソレータ。
- 前記印加磁界は、前記強磁性材料層上において強度または方向が変化する、請求項1〜7の何れかに記載の光アイソレータ。
- 前記共振器が、前記強磁性材料層の一部分に重畳する強磁性金属の層をさらに備え、前記印加磁界が、前記強磁性材料層上において方向および大きさが一定であり、前記一部分が前記強磁性材料層のすべてより小さい、請求項1〜8の何れかに記載の光アイソレータ。
- 前記第1導波路および前記第2導波路が平坦な基板に配置され、前記共振器が前記第1および第2導波路に重畳して、前記第1および第2導波路に垂直に結合される、請求項1〜9の何れかに記載の光アイソレータ。
- 前記印加磁界を生成するための磁界発生器をさらに備える、請求項1〜10の何れかに記載の光アイソレータ。
- 前記印加磁界が、制御信号により選択可能な方向を有する、請求項11に記載の光アイソレータ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/768,858 | 2004-01-29 | ||
US10/768,858 US7215848B2 (en) | 2004-01-29 | 2004-01-29 | Optical isolator utilizing a micro-resonator |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005215674A JP2005215674A (ja) | 2005-08-11 |
JP4777663B2 true JP4777663B2 (ja) | 2011-09-21 |
Family
ID=34654375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005007706A Expired - Fee Related JP4777663B2 (ja) | 2004-01-29 | 2005-01-14 | 光アイソレータ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7215848B2 (ja) |
EP (1) | EP1560048B9 (ja) |
JP (1) | JP4777663B2 (ja) |
DE (1) | DE602004022245D1 (ja) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7259855B2 (en) * | 2003-10-14 | 2007-08-21 | 3M Innovative Properties Company | Porous microsphere resonators |
US7271379B2 (en) * | 2004-05-27 | 2007-09-18 | 3M Innovative Properties Company | Dielectric microcavity fluorosensors excited with a broadband light source |
US8032027B2 (en) | 2005-07-25 | 2011-10-04 | Massachusetts Institute Of Technology | Wide free-spectral-range, widely tunable and hitless-switchable optical channel add-drop filters |
US7532790B2 (en) * | 2006-03-29 | 2009-05-12 | 3M Innovative Properties Company | Method of coupling light into microresonators |
WO2008008344A2 (en) * | 2006-07-11 | 2008-01-17 | Massachusetts Institute Of Technology | Microphotonic maskless lithography |
US8111994B2 (en) * | 2006-08-16 | 2012-02-07 | Massachusetts Institute Of Technology | Balanced bypass circulators and folded universally-balanced interferometers |
EP2087530A1 (en) | 2006-11-10 | 2009-08-12 | Philips Intellectual Property & Standards GmbH | Illumination system comprising monolithic ceramic luminescence converter |
WO2008082664A2 (en) * | 2006-12-29 | 2008-07-10 | Massachusetts Institute Of Technology | Fabrication-tolerant waveguides and resonators |
CN101030830B (zh) * | 2007-01-19 | 2010-09-22 | 浙江大学 | 基于微碟结构的微波接收和转换装置 |
US8655114B2 (en) * | 2007-03-26 | 2014-02-18 | Massachusetts Institute Of Technology | Hitless tuning and switching of optical resonator amplitude and phase responses |
US7539375B2 (en) * | 2007-05-04 | 2009-05-26 | Massachusetts Institute Of Technology | Optical coupled resonator structures based on loop-coupled cavities and loop coupling phase |
US7764852B2 (en) * | 2007-07-30 | 2010-07-27 | Hewlett-Packard Development Company, L.P. | Microresonantor systems and methods of fabricating the same |
US7903909B2 (en) * | 2007-10-22 | 2011-03-08 | Massachusetts Institute Of Technology | Low-loss bloch wave guiding in open structures and highly compact efficient waveguide-crossing arrays |
US8179935B2 (en) * | 2008-04-01 | 2012-05-15 | Hewlett-Packard Development Company, L.P. | Tunable optical resonator |
US7920770B2 (en) * | 2008-05-01 | 2011-04-05 | Massachusetts Institute Of Technology | Reduction of substrate optical leakage in integrated photonic circuits through localized substrate removal |
US8340478B2 (en) | 2008-12-03 | 2012-12-25 | Massachusetts Institute Of Technology | Resonant optical modulators |
US20100238536A1 (en) * | 2009-03-18 | 2010-09-23 | Juejun Hu | Integrated silicon/silicon-germanium magneto-optic isolator |
WO2010138849A1 (en) | 2009-05-29 | 2010-12-02 | Massachusetts Institute Of Technology | Cavity dynamics compensation in resonant optical modulators |
GB2487169B (en) | 2009-10-12 | 2015-02-18 | Ibm | Electromagnetic wave isolator and integrated optics device |
US8334797B1 (en) | 2010-04-20 | 2012-12-18 | Hrl Laboratories, Llc | Wideband high resolution time-stretched photonic analog-to-digital converter |
US8396337B2 (en) * | 2010-06-30 | 2013-03-12 | The Regents Of The University Of California | Ring resonator based optical isolator and circulator |
WO2012106648A1 (en) * | 2011-02-03 | 2012-08-09 | University Of Maryland, College Park | Two-dimensional coupled resonator optical waveguide arrangements and systems, devices, and methods thereof |
WO2012125368A1 (en) * | 2011-03-15 | 2012-09-20 | Massachusetts Institute Of Technology | On-chip miniature optical isolator |
GB201113125D0 (en) * | 2011-07-29 | 2011-09-14 | Univ St Andrews | An optical resonator device |
US8837877B2 (en) | 2011-08-11 | 2014-09-16 | Massachusetts Institute Of Technology | Patterned non-reciprocal optical resonator |
US9128246B2 (en) * | 2011-10-17 | 2015-09-08 | University Of Maryland, College Park | Systems, methods, and devices for optomechanically induced non-reciprocity |
US9438263B1 (en) | 2014-05-02 | 2016-09-06 | Hrl Laboratories, Llc | Controllable opto-electronic time stretcher, an electro-optical analog to digital converter having non-uniform sampling using the same, and related methods of operation |
WO2017136459A1 (en) * | 2016-02-02 | 2017-08-10 | The Regents Of The University Of California | Reconfigurable integrated-optics-based non-reciprocal devices |
US10466515B2 (en) | 2016-03-15 | 2019-11-05 | Intel Corporation | On-chip optical isolator |
US9897827B1 (en) * | 2016-07-27 | 2018-02-20 | Intel Corporation | Feedback controlled closed loop on-chip isolator |
JP7171392B2 (ja) * | 2018-11-28 | 2022-11-15 | 京セラ株式会社 | アイソレータ、光源装置、光送受信機、光スイッチ、光増幅器、及びデータセンター |
Family Cites Families (12)
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US5018857A (en) * | 1988-09-15 | 1991-05-28 | Honeywell Inc. | Passive ring resonator gyro with polarization rotating ring path |
JP3090292B2 (ja) * | 1992-07-29 | 2000-09-18 | 日本電信電話株式会社 | 非相反光回路 |
US5537671A (en) * | 1995-02-10 | 1996-07-16 | The Board Of Trustees Of The Leland Stanford Junior University | Technique of reducing the Kerr effect and extending the dynamic range in a brillouin fiber optic gyroscope |
US6101300A (en) * | 1997-06-09 | 2000-08-08 | Massachusetts Institute Of Technology | High efficiency channel drop filter with absorption induced on/off switching and modulation |
WO2000050938A1 (en) * | 1999-02-22 | 2000-08-31 | Massachusetts Institute Of Technology | Vertically coupled optical resonator devices over a cross-grid waveguide architecture |
JP2002072260A (ja) * | 2000-08-31 | 2002-03-12 | Oki Electric Ind Co Ltd | 光スイッチ素子及び波長ルータ |
JP4837181B2 (ja) * | 2001-04-27 | 2011-12-14 | 独立行政法人科学技術振興機構 | 有機マイクロドットの形成方法及び有機半導体レーザー素子 |
US6751377B2 (en) | 2001-05-21 | 2004-06-15 | Lucent Technologies Inc. | Micromechanically active reconfigurable add-drop filters |
US6760496B2 (en) | 2002-01-31 | 2004-07-06 | Photodigm, Inc. | Inline ferromagnetic-composite isolator and method |
US20040037341A1 (en) | 2002-08-21 | 2004-02-26 | Tan Michael R. | Laser utilizing a microdisk resonator |
AU2003303601A1 (en) * | 2003-01-02 | 2004-07-29 | Massachusetts Institute Of Technology | Magnetically active semiconductor waveguides for optoelectronic integration |
US20050058396A1 (en) * | 2003-09-15 | 2005-03-17 | Maurizio Tormen | Nested function ring resonator |
-
2004
- 2004-01-29 US US10/768,858 patent/US7215848B2/en not_active Expired - Fee Related
- 2004-08-18 DE DE602004022245T patent/DE602004022245D1/de not_active Expired - Fee Related
- 2004-08-18 EP EP04019597A patent/EP1560048B9/en not_active Expired - Fee Related
-
2005
- 2005-01-14 JP JP2005007706A patent/JP4777663B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005215674A (ja) | 2005-08-11 |
EP1560048B1 (en) | 2009-07-29 |
US20050169582A1 (en) | 2005-08-04 |
US7215848B2 (en) | 2007-05-08 |
EP1560048B9 (en) | 2009-10-21 |
DE602004022245D1 (de) | 2009-09-10 |
EP1560048A1 (en) | 2005-08-03 |
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