JPS5573019A - Light modulating and photo switch element - Google Patents

Light modulating and photo switch element

Info

Publication number
JPS5573019A
JPS5573019A JP14605078A JP14605078A JPS5573019A JP S5573019 A JPS5573019 A JP S5573019A JP 14605078 A JP14605078 A JP 14605078A JP 14605078 A JP14605078 A JP 14605078A JP S5573019 A JPS5573019 A JP S5573019A
Authority
JP
Japan
Prior art keywords
optical guides
optical
electrodes
guides
substrate
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
JP14605078A
Other languages
Japanese (ja)
Other versions
JPS5936250B2 (en
Inventor
Osamu Mikami
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP14605078A priority Critical patent/JPS5936250B2/en
Publication of JPS5573019A publication Critical patent/JPS5573019A/en
Publication of JPS5936250B2 publication Critical patent/JPS5936250B2/en
Expired 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 provide the integrally formed decice by such things as making of two optical guides in proximity to a substrate, division of optical guides and provision of electrodes. CONSTITUTION:Two optical guides 2-1, 2-2 are provided parallel in proximity near the surface of a substrate 1 being material having electro-optic effect. If the two optical guides are close, the light propagating in one guide can transfer 100% to the other guide. If a phase difference is given to the two optical guides by providing planar electrodes 3-1, 3-2, 3'-1, 3'-2 in the divided positions on the respective waveguides, providing a high refractive index charging film 11 therebetween and applying voltage to these electrodes, then the incident light is changed over of its optical path or not by said voltage and therefore it turns out that the changing over of the optical path or light modulation may be electrically accomplished.
JP14605078A 1978-11-28 1978-11-28 Optical modulation/optical switching device Expired JPS5936250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14605078A JPS5936250B2 (en) 1978-11-28 1978-11-28 Optical modulation/optical switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14605078A JPS5936250B2 (en) 1978-11-28 1978-11-28 Optical modulation/optical switching device

Publications (2)

Publication Number Publication Date
JPS5573019A true JPS5573019A (en) 1980-06-02
JPS5936250B2 JPS5936250B2 (en) 1984-09-03

Family

ID=15398955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14605078A Expired JPS5936250B2 (en) 1978-11-28 1978-11-28 Optical modulation/optical switching device

Country Status (1)

Country Link
JP (1) JPS5936250B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146018A (en) * 1986-12-10 1988-06-18 Nippon Telegr & Teleph Corp <Ntt> Variable light branching device
US4844572A (en) * 1987-08-13 1989-07-04 Lgz Landis & Gyr Zug Ag Light modulator including waveguide with alternating semiconductor sections

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63146018A (en) * 1986-12-10 1988-06-18 Nippon Telegr & Teleph Corp <Ntt> Variable light branching device
US4844572A (en) * 1987-08-13 1989-07-04 Lgz Landis & Gyr Zug Ag Light modulator including waveguide with alternating semiconductor sections

Also Published As

Publication number Publication date
JPS5936250B2 (en) 1984-09-03

Similar Documents

Publication Publication Date Title
GB1467327A (en) Optical waveguides
JPS5713423A (en) Liquid crystal cell
JPS5526592A (en) Photoelectric display
GB996084A (en) Improvements in and relating to optical devices
KR900004093A (en) Frequency multiplication apparatus and method
GB1531900A (en) Wave guide optical modulators
JPS5573019A (en) Light modulating and photo switch element
JPS57161837A (en) Optical switching method
JPS56165122A (en) Direct current drift preventing method in optical modulator and optical deflecting device
JPS57142622A (en) Photoswitch
JPS57158616A (en) Optical coupler
JPS5630116A (en) Photo function switch
JPS5466157A (en) Photo switching and branching circuit
JPS5595928A (en) Photo branching filter
JPS559575A (en) Light wave length separating switch
JPS561922A (en) Branch line type light modulator
JPS54156555A (en) Photo circuit element
JPS5727234A (en) Light controlling element
JPS5452562A (en) Variable wavelength selection filter
JPS643624A (en) Waveguide type optical interferometer
JPS5666819A (en) Waveguide type magneto-optic photo circuit element
JPS57182719A (en) Optical switch
JPS5766417A (en) Waveguide type fresnel optical modulator
JPS561014A (en) Optical filter of controllable transmission characteristic
JPS5466156A (en) Optical switch array