JPS57112722A - Optical modulator - Google Patents

Optical modulator

Info

Publication number
JPS57112722A
JPS57112722A JP18788880A JP18788880A JPS57112722A JP S57112722 A JPS57112722 A JP S57112722A JP 18788880 A JP18788880 A JP 18788880A JP 18788880 A JP18788880 A JP 18788880A JP S57112722 A JPS57112722 A JP S57112722A
Authority
JP
Japan
Prior art keywords
light
optical
fiber
fiber core
lenses
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
JP18788880A
Other languages
Japanese (ja)
Other versions
JPH0310927B2 (en
Inventor
Shigefumi Masuda
Takeo Iwama
Hiroki Nakajima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18788880A priority Critical patent/JPS57112722A/en
Publication of JPS57112722A publication Critical patent/JPS57112722A/en
Publication of JPH0310927B2 publication Critical patent/JPH0310927B2/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

Landscapes

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

Abstract

PURPOSE:To modulate the light in a high speed without requiring the dependency upon the plane of light polarization, by providing an electrode in an electrooptic optical deflecting element to irradiate the light from an optical fiber to an optical modulating element directly through a lens. CONSTITUTION:Two lenses 6 and 6' are installed under an optimum optical coupling condition between a pair of optical fibers, at least, which have end faces are shaped into a recess or projection, for example, between optical fiber bundles 7 and 7' consisting of fiber cores (a) and (b) and fiber cores (c) and (d), respectively, and an electrooptical optical deflecting crystal substrate 5 is installed on the light path between lenses 6 and 6'. When voltages are applied to electrodes 8 and 8' buried in this crystal substrate 5, a refractive index inclination is generated by the density distribution of lines of electric force to deflect the incident light, and thus, the light from the fiber core (a) is made incident to the fiber core (d) or the fiber core (c) to be modulated.
JP18788880A 1980-12-29 1980-12-29 Optical modulator Granted JPS57112722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18788880A JPS57112722A (en) 1980-12-29 1980-12-29 Optical modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18788880A JPS57112722A (en) 1980-12-29 1980-12-29 Optical modulator

Publications (2)

Publication Number Publication Date
JPS57112722A true JPS57112722A (en) 1982-07-13
JPH0310927B2 JPH0310927B2 (en) 1991-02-14

Family

ID=16213941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18788880A Granted JPS57112722A (en) 1980-12-29 1980-12-29 Optical modulator

Country Status (1)

Country Link
JP (1) JPS57112722A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958896A (en) * 1987-11-06 1990-09-25 U.S. Philips Corp. Optical multi-gate element with an acousto-optical modulator
US8400703B2 (en) 2007-06-19 2013-03-19 Nec Corporation Optical switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539131A (en) * 1976-07-09 1978-01-27 Xerox Corp Electroooprical modulator deflector
JPS54122134A (en) * 1978-03-16 1979-09-21 Nippon Telegr & Teleph Corp <Ntt> Light crossbar switch
JPS55155302A (en) * 1979-05-23 1980-12-03 Nippon Telegr & Teleph Corp <Ntt> Photo matrix switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539131A (en) * 1976-07-09 1978-01-27 Xerox Corp Electroooprical modulator deflector
JPS54122134A (en) * 1978-03-16 1979-09-21 Nippon Telegr & Teleph Corp <Ntt> Light crossbar switch
JPS55155302A (en) * 1979-05-23 1980-12-03 Nippon Telegr & Teleph Corp <Ntt> Photo matrix switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958896A (en) * 1987-11-06 1990-09-25 U.S. Philips Corp. Optical multi-gate element with an acousto-optical modulator
US8400703B2 (en) 2007-06-19 2013-03-19 Nec Corporation Optical switch

Also Published As

Publication number Publication date
JPH0310927B2 (en) 1991-02-14

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