JPS56110916A - Magnetic-optical thin film optical switch - Google Patents

Magnetic-optical thin film optical switch

Info

Publication number
JPS56110916A
JPS56110916A JP1337880A JP1337880A JPS56110916A JP S56110916 A JPS56110916 A JP S56110916A JP 1337880 A JP1337880 A JP 1337880A JP 1337880 A JP1337880 A JP 1337880A JP S56110916 A JPS56110916 A JP S56110916A
Authority
JP
Japan
Prior art keywords
semi
mode
beta
waveguide path
path
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
Application number
JP1337880A
Other languages
Japanese (ja)
Other versions
JPS6343725B2 (en
Inventor
Yoshinori Oota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1337880A priority Critical patent/JPS56110916A/en
Publication of JPS56110916A publication Critical patent/JPS56110916A/en
Publication of JPS6343725B2 publication Critical patent/JPS6343725B2/ja
Granted legal-status Critical Current

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
    • G02F1/29—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 position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching
    • G02F1/313—Digital deflection, i.e. optical switching in an optical waveguide structure
    • G02F1/3132—Digital deflection, i.e. optical switching in an optical waveguide structure of directional coupler type

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To prevent the variation of the switch properties caused by the polarizing state of incident rays, by forming the directional coupling part with the distribution coupling parts exclusive for the TM mode and for the TE mode each. CONSTITUTION:The crystal layer 2 of the yttrium iron garnet or the like having the Faraday effect as well as a higher refractive index than the single-crystal substrate 1 is provided on the substrate 1 of the gallium gadolinium garnet or the like. In this case, the thickness of the layer 2 is increased partially to form an optical waveguide path. Then the propagation phase constant is set to beta, and the beta to the semi-TE and semi-TM modes of the waveguide path 3 is set identical to the beta to the semi-TM mode of the waveguide path 4 as well as to the beta to the semi-TE mode of the waveguide path 5 respectively. Thus the semi-TE mode light propagating the path 3 and the semi-TM mode light receive a distribution coupling at 4 and 5 each owing to the presence of the applied magnetic field 10 and are then radiated through the waveguide path 6.
JP1337880A 1980-02-06 1980-02-06 Magnetic-optical thin film optical switch Granted JPS56110916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1337880A JPS56110916A (en) 1980-02-06 1980-02-06 Magnetic-optical thin film optical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1337880A JPS56110916A (en) 1980-02-06 1980-02-06 Magnetic-optical thin film optical switch

Publications (2)

Publication Number Publication Date
JPS56110916A true JPS56110916A (en) 1981-09-02
JPS6343725B2 JPS6343725B2 (en) 1988-09-01

Family

ID=11831425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1337880A Granted JPS56110916A (en) 1980-02-06 1980-02-06 Magnetic-optical thin film optical switch

Country Status (1)

Country Link
JP (1) JPS56110916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012341A1 (en) * 1989-03-31 1990-10-18 Shimadzu Corporation Optical circuit element of waveguide type
CN118112828A (en) * 2024-04-30 2024-05-31 上海铭锟半导体有限公司 Magneto-optical effect driven nonvolatile optical switch and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012341A1 (en) * 1989-03-31 1990-10-18 Shimadzu Corporation Optical circuit element of waveguide type
US5103491A (en) * 1989-03-31 1992-04-07 Shimadzu Corporation Waveguide type optical circuit element
CN118112828A (en) * 2024-04-30 2024-05-31 上海铭锟半导体有限公司 Magneto-optical effect driven nonvolatile optical switch and preparation method thereof

Also Published As

Publication number Publication date
JPS6343725B2 (en) 1988-09-01

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