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JPS5785004A - Fiber optical phase modulator - Google Patents

Fiber optical phase modulator

Info

Publication number
JPS5785004A
JPS5785004A JP55161530A JP16153080A JPS5785004A JP S5785004 A JPS5785004 A JP S5785004A JP 55161530 A JP55161530 A JP 55161530A JP 16153080 A JP16153080 A JP 16153080A JP S5785004 A JPS5785004 A JP S5785004A
Authority
JP
Japan
Prior art keywords
phase modulator
center part
optical phase
electrodeless
fiber optical
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
JP55161530A
Other languages
Japanese (ja)
Other versions
JPH0131168B2 (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 JP55161530A priority Critical patent/JPS5785004A/en
Publication of JPS5785004A publication Critical patent/JPS5785004A/en
Publication of JPH0131168B2 publication Critical patent/JPH0131168B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/06—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the phase of light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To obtain a fiber optical phase modulator having high efficiency and high band width, by providing an electrodeless part on the center part in the axial direction of one cylinder of driving electrodes provided on both the inside and outside surfaces of a cylindrical piezoelectric ceramic vibrator, and also winding an optical fiber around the center part of the outside cylindrical surface. CONSTITUTION:On the inside and outside cylindrical surfaces of a cylindrical piezoelectric ceramic vibrator, driving electrodes 5 and 4 are provided, and the center part in the axial direction of the outside cylindrical surface is electrodeless. An optical fiber consisting of an optical fiber strand 1 and coating 2 is wound around this center part. In this case, the electrodeless part is set to about 1/3 of the overall lengh. In this way, a fiber optical phase modulator having high efficiency and high band width is obtained.
JP55161530A 1980-11-17 1980-11-17 Fiber optical phase modulator Granted JPS5785004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161530A JPS5785004A (en) 1980-11-17 1980-11-17 Fiber optical phase modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161530A JPS5785004A (en) 1980-11-17 1980-11-17 Fiber optical phase modulator

Publications (2)

Publication Number Publication Date
JPS5785004A true JPS5785004A (en) 1982-05-27
JPH0131168B2 JPH0131168B2 (en) 1989-06-23

Family

ID=15736835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161530A Granted JPS5785004A (en) 1980-11-17 1980-11-17 Fiber optical phase modulator

Country Status (1)

Country Link
JP (1) JPS5785004A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188609U (en) * 1982-06-09 1983-12-15 日本電気株式会社 optical delay element
US4554510A (en) * 1983-09-12 1985-11-19 The Board Of Trustees Of Leland Stanford Junior University Switching fiber optic amplifier
US4674830A (en) * 1983-11-25 1987-06-23 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
US4723824A (en) * 1983-11-25 1988-02-09 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
JPH04303816A (en) * 1991-04-01 1992-10-27 Sumitomo Electric Ind Ltd Optical fiber phase modulator and its manufacturing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188609U (en) * 1982-06-09 1983-12-15 日本電気株式会社 optical delay element
US4554510A (en) * 1983-09-12 1985-11-19 The Board Of Trustees Of Leland Stanford Junior University Switching fiber optic amplifier
US4674830A (en) * 1983-11-25 1987-06-23 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
US4723824A (en) * 1983-11-25 1988-02-09 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
US4859016A (en) * 1983-11-25 1989-08-22 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
JPH04303816A (en) * 1991-04-01 1992-10-27 Sumitomo Electric Ind Ltd Optical fiber phase modulator and its manufacturing method

Also Published As

Publication number Publication date
JPH0131168B2 (en) 1989-06-23

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