JPS5737328A - Optical directional coupler - Google Patents

Optical directional coupler

Info

Publication number
JPS5737328A
JPS5737328A JP11432380A JP11432380A JPS5737328A JP S5737328 A JPS5737328 A JP S5737328A JP 11432380 A JP11432380 A JP 11432380A JP 11432380 A JP11432380 A JP 11432380A JP S5737328 A JPS5737328 A JP S5737328A
Authority
JP
Japan
Prior art keywords
modes
phases
pieces
dependency
coupling
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.)
Pending
Application number
JP11432380A
Other languages
Japanese (ja)
Inventor
Noriaki Tsukada
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11432380A priority Critical patent/JPS5737328A/en
Publication of JPS5737328A publication Critical patent/JPS5737328A/en
Pending 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
    • G02F1/3136—Digital deflection, i.e. optical switching in an optical waveguide structure of interferometric switch type
    • 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
    • G02F2203/06—Polarisation independent

Landscapes

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

Abstract

PURPOSE:To eliminate mode dependency by providing a phase shifter that can independently change the phases of TE, TM modes between two pieces of 3dB coupling parts wherein the coeffts. of coupling of the TE, TM modes propagating in optical waveguides are made equal. CONSTITUTION:Two pieces of 3dB coupling parts I, II wherein the coeffts. of coupling of the TE, TM modes propagating in respective optical waveguides by the application of prescribed voltage to respective electrodes are made equal and which are eliminated of polarization dependency are provided in two pieces of parallel optical waveguides formed in a substrate having electrooptic effect, and further, a phase shifter III which can change the phases of the TE, TM modes mutually independently is provided at their intermediate. Hence, switching effect is realized by changing the phase of the TE mode and the mode dependency is eliminated by making the phases of the TE, TM modes equal, thus the optical directional coupler which has no polarization dependency and permits light power exchanging is obtained.
JP11432380A 1980-08-18 1980-08-18 Optical directional coupler Pending JPS5737328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11432380A JPS5737328A (en) 1980-08-18 1980-08-18 Optical directional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11432380A JPS5737328A (en) 1980-08-18 1980-08-18 Optical directional coupler

Publications (1)

Publication Number Publication Date
JPS5737328A true JPS5737328A (en) 1982-03-01

Family

ID=14634954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11432380A Pending JPS5737328A (en) 1980-08-18 1980-08-18 Optical directional coupler

Country Status (1)

Country Link
JP (1) JPS5737328A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129237A (en) * 1987-11-16 1989-05-22 Nippon Telegr & Teleph Corp <Ntt> Optical logical circuit
JPH01201627A (en) * 1988-02-08 1989-08-14 Nippon Telegr & Teleph Corp <Ntt> Waveguide type optical switch
FR2658314A1 (en) * 1990-02-12 1991-08-16 Alcatel Nv ELECTRO-OPTICAL DEVICE HAVING LIGHT GUIDES, IN PARTICULAR FOR A POLARIZATION SEPARATOR
FR2658315A1 (en) * 1990-02-14 1991-08-16 France Etat POLARIZATION SEPARATOR FOR GUIDED LIGHT.
US5151957A (en) * 1990-10-31 1992-09-29 France Telecom Etablissement Autonome De Droit Public (Centre National D'etudes Des Telecommunications) Polarization beam splitter for guided light

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129237A (en) * 1987-11-16 1989-05-22 Nippon Telegr & Teleph Corp <Ntt> Optical logical circuit
JPH01201627A (en) * 1988-02-08 1989-08-14 Nippon Telegr & Teleph Corp <Ntt> Waveguide type optical switch
FR2658314A1 (en) * 1990-02-12 1991-08-16 Alcatel Nv ELECTRO-OPTICAL DEVICE HAVING LIGHT GUIDES, IN PARTICULAR FOR A POLARIZATION SEPARATOR
FR2658315A1 (en) * 1990-02-14 1991-08-16 France Etat POLARIZATION SEPARATOR FOR GUIDED LIGHT.
US5151957A (en) * 1990-10-31 1992-09-29 France Telecom Etablissement Autonome De Droit Public (Centre National D'etudes Des Telecommunications) Polarization beam splitter for guided light

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