JPS5710550A - Optical transmission circuit - Google Patents

Optical transmission circuit

Info

Publication number
JPS5710550A
JPS5710550A JP8392380A JP8392380A JPS5710550A JP S5710550 A JPS5710550 A JP S5710550A JP 8392380 A JP8392380 A JP 8392380A JP 8392380 A JP8392380 A JP 8392380A JP S5710550 A JPS5710550 A JP S5710550A
Authority
JP
Japan
Prior art keywords
signal
signal source
optical
polarized
light
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
JP8392380A
Other languages
Japanese (ja)
Other versions
JPS625495B2 (en
Inventor
Makoto Niino
Harushige Ochi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP8392380A priority Critical patent/JPS5710550A/en
Publication of JPS5710550A publication Critical patent/JPS5710550A/en
Publication of JPS625495B2 publication Critical patent/JPS625495B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To reduce the modal noise, by locating an optical deflecting element in which the polarized surface of light can be changed with an electric signal, between a light emitting element and optical fiber in an optical transmission circuit. CONSTITUTION:A light emitting element 3 is illuminated via a drive circ-it 2 in response to a communication signal of a signal source 1. An optical polarized element 5 in which the polarized plane of light is rotated with a signal of a signal source 6, e.g., electroluminescent effect element like LiTaO3, Farady effect element, or electrostrictive effect element, is located between the element 3 and an input terminal of an optical fiber 4. The signal frequency of the signal source 6 is sufficiently made apart from the band of communication signal from the signal source 1 without interference. Thus, the rays can pass through multipath without injuring the rfficiency, allowing to reduce the modal noise.
JP8392380A 1980-06-23 1980-06-23 Optical transmission circuit Granted JPS5710550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8392380A JPS5710550A (en) 1980-06-23 1980-06-23 Optical transmission circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8392380A JPS5710550A (en) 1980-06-23 1980-06-23 Optical transmission circuit

Publications (2)

Publication Number Publication Date
JPS5710550A true JPS5710550A (en) 1982-01-20
JPS625495B2 JPS625495B2 (en) 1987-02-05

Family

ID=13816115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8392380A Granted JPS5710550A (en) 1980-06-23 1980-06-23 Optical transmission circuit

Country Status (1)

Country Link
JP (1) JPS5710550A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023948A (en) * 1985-06-19 1991-06-11 British Telecommunications Public Limited Company Polarization modulation of optical signals using birefringent medium
US6386900B2 (en) 2000-06-28 2002-05-14 Sumitomo Wiring Systems, Ltd. Insulation-displacement terminal fitting
US6413115B2 (en) 2000-06-29 2002-07-02 Sumitomo Wiring Systems, Ltd. Insulation-displacement terminal fitting
US6416348B2 (en) 2000-04-24 2002-07-09 Sumitomo Wiring Systems, Ltd. Insulation-displacement terminal fitting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023948A (en) * 1985-06-19 1991-06-11 British Telecommunications Public Limited Company Polarization modulation of optical signals using birefringent medium
US6416348B2 (en) 2000-04-24 2002-07-09 Sumitomo Wiring Systems, Ltd. Insulation-displacement terminal fitting
US6386900B2 (en) 2000-06-28 2002-05-14 Sumitomo Wiring Systems, Ltd. Insulation-displacement terminal fitting
US6413115B2 (en) 2000-06-29 2002-07-02 Sumitomo Wiring Systems, Ltd. Insulation-displacement terminal fitting

Also Published As

Publication number Publication date
JPS625495B2 (en) 1987-02-05

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