KR960035055A - 자기광학소자 및 광자계센서 - Google Patents
자기광학소자 및 광자계센서 Download PDFInfo
- Publication number
- KR960035055A KR960035055A KR1019950068549A KR19950068549A KR960035055A KR 960035055 A KR960035055 A KR 960035055A KR 1019950068549 A KR1019950068549 A KR 1019950068549A KR 19950068549 A KR19950068549 A KR 19950068549A KR 960035055 A KR960035055 A KR 960035055A
- Authority
- KR
- South Korea
- Prior art keywords
- magneto
- optical
- value
- rare earth
- optical element
- Prior art date
Links
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
- G01R33/0322—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect using the Faraday or Voigt effect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/342—Oxides
- H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
- H01F1/346—[(TO4) 3] with T= Si, Al, Fe, Ga
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
- H01F10/20—Ferrites
- H01F10/24—Garnets
- H01F10/245—Modifications for enhancing interaction with electromagnetic wave energy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Dispersion Chemistry (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Measuring Magnetic Variables (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
본 발명은 패러데이효과를 가진 자기광학소자와 그것을 사용한 광자계센서에 관한 것으로서, 자기광학소자는, 일반식 ①로 표시되는 회토류철가닛결정이고, 조성범위에 있어서 X의 값을 1.00≤X ≤1.30, 또한 Y의 값을 0.42≤Y ≤0.60, 또한 Z의 값을 0.01≤Z ≤0.05, 또한 W의 값을 0.40≤W ≤0.62로 하고, 자계에 대해서 온도특성이 좋은 자기광학소자가 된다. 또 이 자기광학소자를 사용해서 회절광을 고차까지 수광할 수 있는 광학계를 사용해서 광자계센서를 구성한다. 이 자기광학소자와 센서광학계를 사용한 광자계센서는, 자기광학소자의 포화자계까지의 측정범위에서, 계측오차가 1.0% 이하이고, 종래에 없는 높은 자계측정정밀도를 실현하는 것이다.
(BiXGdYRZY3-X-Y-Z)(Fe5-wGaw)O12①
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 광자계센서의 실시예와 광선추적을 표시한 도면, 제2도는 본 발명의 자기광학소자를 사용한 광자계센서의 감도의 온도의존성을 표시한 도면, 제3도는 본 발명의 자기광학소자와 광자계센서를 사용한 센서출력의 직선성을 표시한 도면, 제10도는 본 발명의 광자계센서의 다른 실시예를 표시한 도면.
Claims (7)
- 하기 일반식으로 표시되는 회토류철가닛재료에 있어서, X의 값을 1.00≤X ≤1.30, 또한 Y의 값을 0.42 ≤Y ≤ 0.60, 또한 Z 값을 0.01≤Z ≤0.05, 또한 W의 값을 0.40≤W ≤0.62로 한 것을 특징으로 하는 자기광학소자.(BiXGdYRZY3-X-Y-Z)(Fe5-WGaW)O12①R은 회토류원소로부터 선택되는 적어도 1종류의 원소이다.
- 하기 일반식으로 표시되는 회토류철가닛재료에 있어서, X의 값을 1.10≤X ≤1.30, 또한 Y의 값을 1.00≤Y ≤1.80, 또한 Z의 값을 0≤Z ≤0.06으로 한 것을 특징으로 하는 자기광학소자.(BiXGdYRZY3-X-Y-Z)Fe5O12②R은 회토류원소로부터 선택되는 적어도 1종류의 원소이다.
- 제1항 또는 제2항에 있어서, 회토류철가닛재료를 가닛결정기판상에 에피택셜성장시켜서 형성하는 것을 특징으로 하는 자기광학소자.
- 제3항에 있어서, 가닛결정기판이 Ca-Mg-Zr치환형Gd3Ga5O12기판인 것을 특징으로 하는 자기광학소자.
- 제1항 또는 제2항에 있어서, 회토류철가닛재료의 막두께가 50㎛ 이상인 것을 특징으로 하는 자기광학소자.
- 적어도 광의 진행방향을 따라서, 편광자와, 자기광학소자와, 상기 편광자에 대해서 투과편광방향을 서로 다르게 한 검광자를 배치해서 피측정자계를 출력광강도로서 검지하는 광자계센서에 있어서, 상기 자기광학소자의 일단부에, 상기 편광자를 사이에 끼워서 설치된 제1렌즈와, 상기 자기광학소자의 일단부이고, 상기 제1렌즈에 대향하는 면에, 상기 검광자를 사이에 끼워서 설치된 제2렌즈를 개재해서, 상기 제1렌즈에 광을 입력하는 입력광파이버와 상기 자기광학소자 및 상기 제2렌즈의 광을 출력하는 출력광파이버와 상기 자기광학소자와 공초점광학계로 구성되고, 상기 입력광파이버와 상기 출력광파이버가 상기 자기광학소자에 대해서 선대칭으로 배치되어 있는 것을 특징으로 하는 광자계센서.
- 제6항에 있어서, 자기광학소자가 회토류철가닛재료인 것을 특징으로 하는 광자계센서.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP95-58935 | 1995-03-17 | ||
JP05893595A JP3193945B2 (ja) | 1995-03-17 | 1995-03-17 | 磁気光学素子及び光磁界センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960035055A true KR960035055A (ko) | 1996-10-24 |
KR100203375B1 KR100203375B1 (ko) | 1999-06-15 |
Family
ID=13098699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950068549A KR100203375B1 (ko) | 1995-03-17 | 1995-12-30 | 자기광학소자 및 광자계센서 |
Country Status (6)
Country | Link |
---|---|
US (2) | US5691837A (ko) |
EP (2) | EP0732709B1 (ko) |
JP (1) | JP3193945B2 (ko) |
KR (1) | KR100203375B1 (ko) |
DE (2) | DE69608593T2 (ko) |
TW (2) | TW351773B (ko) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5939711A (en) * | 1995-12-11 | 1999-08-17 | Lockheed Martin Idaho Technologies Company | Electro-optic voltage sensor head |
US6333809B1 (en) * | 1996-02-21 | 2001-12-25 | Matsushita Electric Industrial Co., Ltd. | Magneto-optical element |
US20080128844A1 (en) * | 2002-11-18 | 2008-06-05 | Tessera North America | Integrated micro-optical systems and cameras including the same |
US6426829B1 (en) | 1998-03-26 | 2002-07-30 | Digital Optics Corp. | Integrated micro-optical systems |
EP1064650B1 (en) | 1998-03-26 | 2003-05-28 | Digital Optics Corporation | Integrated micro-optical systems |
JP4001436B2 (ja) * | 1998-07-23 | 2007-10-31 | 三菱電機株式会社 | 光スイッチ及び光スイッチを用いた光路切換装置 |
US6388434B1 (en) | 2000-01-17 | 2002-05-14 | Bechtel Bwxt Idaho, Llc | Electro-optic high voltage sensor |
JP3699629B2 (ja) * | 2000-02-22 | 2005-09-28 | Tdk株式会社 | 磁性ガーネット材料及びそれを用いた磁気光学素子 |
US6630819B2 (en) * | 2001-02-22 | 2003-10-07 | The University Of Chicago | Magneto-optic current sensor |
US6701036B2 (en) * | 2001-03-19 | 2004-03-02 | The Research Foundation Of State University Of New York | Mirror, optical switch, and method for redirecting an optical signal |
US8059345B2 (en) * | 2002-07-29 | 2011-11-15 | Digitaloptics Corporation East | Integrated micro-optical systems |
US8659291B2 (en) * | 2008-12-31 | 2014-02-25 | Infinitum Solutions, Inc. | Magneto-optical detection of a field produced by a sub-resolution magnetic structure |
US8289818B2 (en) | 2008-12-31 | 2012-10-16 | Infinitum Solutions, Inc. | Magneto-optic write-head characterization using the recording medium as a transducer layer |
JP5447002B2 (ja) * | 2009-03-19 | 2014-03-19 | セイコーエプソン株式会社 | 磁場測定装置 |
US8427929B2 (en) | 2010-09-08 | 2013-04-23 | Infinitum Solutions, Inc. | Sub-optical-resolution kerr signal detection for perpendicular write-head characterization |
US9533917B2 (en) | 2012-12-06 | 2017-01-03 | Shin-Etsu Chemical Co., Ltd. | Light-transmitting bismuth-substituted rare-earth iron garnet-type calcined material, and magneto-optical device |
WO2015094343A1 (en) | 2013-12-20 | 2015-06-25 | Halliburton Energy Services, Inc. | Optical sensors in downhole logging tools |
JP6744143B2 (ja) | 2015-06-15 | 2020-08-19 | スカイワークス ソリューションズ, インコーポレイテッドSkyworks Solutions, Inc. | 合成ガーネット材料、改質された合成ガーネット組成物、および合成ガーネットを製造する方法 |
RU2692047C1 (ru) * | 2018-02-14 | 2019-06-19 | Акционерное общество "Научно-исследовательский институт материаловедения им. А.Ю. Малинина" | Магнитооптический элемент и считывающее устройство с таким элементом |
CN117555168B (zh) * | 2024-01-09 | 2024-04-19 | 之江实验室 | 片上集成磁光隔离器 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139082A (ja) * | 1982-02-15 | 1983-08-18 | Hitachi Ltd | 磁界測定装置 |
JPS5981570A (ja) * | 1982-11-01 | 1984-05-11 | Hitachi Ltd | 光方式磁界測定装置 |
US4974944A (en) * | 1988-07-21 | 1990-12-04 | Hewlett-Packard Company | Optical nonreciprocal device |
JPH0782164B2 (ja) * | 1991-04-25 | 1995-09-06 | 松下電器産業株式会社 | 磁気光学素子及び磁界測定装置 |
EP0510521A3 (en) * | 1991-04-26 | 1993-02-10 | Nippon Zeon Co., Ltd. | A method of preparation of foamed articles of polyvinyl chloride resins |
JP2783012B2 (ja) * | 1991-10-25 | 1998-08-06 | 住友金属鉱山株式会社 | 光磁界センサの磁気光学膜 |
US5485079A (en) * | 1993-03-29 | 1996-01-16 | Matsushita Electric Industrial Co., Ltd. | Magneto-optical element and optical magnetic field sensor |
JP3458865B2 (ja) * | 1994-05-23 | 2003-10-20 | 三菱瓦斯化学株式会社 | 低飽和磁界ビスマス置換希土類鉄ガーネット単結晶、および、その用途 |
US5566017A (en) * | 1994-08-04 | 1996-10-15 | Fdk Corporation | Material for magneto-optical element and faraday rotator using the same |
-
1995
- 1995-03-17 JP JP05893595A patent/JP3193945B2/ja not_active Expired - Fee Related
- 1995-12-11 TW TW084113196A patent/TW351773B/zh not_active IP Right Cessation
- 1995-12-11 TW TW091218234U patent/TW555011U/zh not_active IP Right Cessation
- 1995-12-30 KR KR1019950068549A patent/KR100203375B1/ko not_active IP Right Cessation
-
1996
- 1996-03-14 DE DE69608593T patent/DE69608593T2/de not_active Expired - Fee Related
- 1996-03-14 EP EP96104073A patent/EP0732709B1/en not_active Expired - Lifetime
- 1996-03-14 EP EP99110502A patent/EP0935141B1/en not_active Expired - Lifetime
- 1996-03-14 DE DE69624385T patent/DE69624385T2/de not_active Expired - Fee Related
- 1996-03-14 US US08/615,940 patent/US5691837A/en not_active Expired - Lifetime
-
1997
- 1997-04-07 US US08/834,881 patent/US5835257A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0935141A3 (en) | 1999-08-18 |
US5691837A (en) | 1997-11-25 |
EP0732709B1 (en) | 2000-05-31 |
DE69624385T2 (de) | 2003-06-12 |
EP0935141B1 (en) | 2002-10-16 |
TW555011U (en) | 2003-09-21 |
DE69624385D1 (de) | 2002-11-21 |
TW351773B (en) | 1999-02-01 |
KR100203375B1 (ko) | 1999-06-15 |
EP0935141A2 (en) | 1999-08-11 |
JPH08254675A (ja) | 1996-10-01 |
US5835257A (en) | 1998-11-10 |
DE69608593T2 (de) | 2000-09-21 |
JP3193945B2 (ja) | 2001-07-30 |
EP0732709A1 (en) | 1996-09-18 |
DE69608593D1 (de) | 2000-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR960035055A (ko) | 자기광학소자 및 광자계센서 | |
EP0510621B1 (en) | Magneto-optical element and magnetic field measurement apparatus | |
EP0208476B1 (en) | Magnetic field sensor having magneto-optic element | |
US6232763B1 (en) | Magneto-optical element and optical magnetic field sensor | |
EP0086373A1 (en) | Magneto-optical converter | |
Didosyan et al. | Magneto-optical current sensors of high bandwidth | |
US5075546A (en) | Magnetic field measurement apparatus | |
Didosyan et al. | Magneto-optical current sensor by domain wall motion in orthoferrites | |
KR960015986B1 (ko) | 자장측정장치 | |
Levy et al. | Permanent magnet film magneto‐optic waveguide isolator | |
Baruchel et al. | 180 Antiferromagnetic domains in MnF2 by neutron topography | |
EP0785454A1 (en) | Faraday rotator for magneto-optic sensors | |
CA2024036A1 (en) | High sensitivity optical magnetic field sensors | |
Didosyan et al. | Temperature characteristics of a new magneto-optical current transformer | |
SU1348760A1 (ru) | Устройство дл измерени напр женности магнитного пол | |
Didosyan et al. | Electrical current sensors based on transparent magnets | |
JPS62150185A (ja) | 磁界測定装置 | |
Sohlström et al. | The performance of a fiber optic magnetic field sensor utilizing a magneto-optical garnet | |
SU1420559A1 (ru) | Устройство дл измерени магнитных полей | |
Ahlers et al. | Coercivity meter with earth's magnetic field compensation | |
JPS56124064A (en) | Floating magnetic field measurement | |
JPS6319572A (ja) | 磁気センサ | |
JPH02103484A (ja) | 磁界検出装置 | |
JP3248211B2 (ja) | 磁気光学膜 | |
Itoh et al. | Optical magnetic field probe sensor with high accuracy using iron garnet films |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20080310 Year of fee payment: 10 |
|
LAPS | Lapse due to unpaid annual fee |