JPS54111839A - Optical fiber core - Google Patents

Optical fiber core

Info

Publication number
JPS54111839A
JPS54111839A JP1858378A JP1858378A JPS54111839A JP S54111839 A JPS54111839 A JP S54111839A JP 1858378 A JP1858378 A JP 1858378A JP 1858378 A JP1858378 A JP 1858378A JP S54111839 A JPS54111839 A JP S54111839A
Authority
JP
Japan
Prior art keywords
optical fiber
buffer layer
fiber core
forming
fiber strand
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
JP1858378A
Other languages
Japanese (ja)
Other versions
JPS5742843B2 (en
Inventor
Shinya Kojima
Masaaki Kawase
Katsuya Yamashita
Yukiyasu Negishi
Yasuyuki Sugawara
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP1858378A priority Critical patent/JPS54111839A/en
Publication of JPS54111839A publication Critical patent/JPS54111839A/en
Publication of JPS5742843B2 publication Critical patent/JPS5742843B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE: To reduce the change of loss against external force by changing the hardness of the buffer layer of the optical fiber core provided between optical fiber strand and the protecting covering on the outer layer in its radial direction and forming the optical fiber core.
CONSTITUTION: In forming the optical fiber core by providing a buffer layer 4' around an optical fiber strand 1 and further laminating a protection covering 3 such as plastics or the like on the outer side thereof, the hardness of the buffer layer 4' is changed as it goes away in the diametral direction from the axial center thereby forming the buffer layer (in the figure (b), 5, 6, 7 denote the hardnesses of the optical fiber strand, protection covering and buffer layer respectively).
COPYRIGHT: (C)1979,JPO&Japio
JP1858378A 1978-02-22 1978-02-22 Optical fiber core Granted JPS54111839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1858378A JPS54111839A (en) 1978-02-22 1978-02-22 Optical fiber core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1858378A JPS54111839A (en) 1978-02-22 1978-02-22 Optical fiber core

Publications (2)

Publication Number Publication Date
JPS54111839A true JPS54111839A (en) 1979-09-01
JPS5742843B2 JPS5742843B2 (en) 1982-09-10

Family

ID=11975639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1858378A Granted JPS54111839A (en) 1978-02-22 1978-02-22 Optical fiber core

Country Status (1)

Country Link
JP (1) JPS54111839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041919U (en) * 1983-08-26 1985-03-25 日立電線株式会社 Multi-core bulk coated optical fiber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5286343A (en) * 1976-01-13 1977-07-18 Fujikura Ltd Fiber for optical transmission
JPS53123152A (en) * 1977-04-01 1978-10-27 Nippon Telegr & Teleph Corp <Ntt> Optical transmission glass fiber and production therfor
JPS5434844A (en) * 1977-08-23 1979-03-14 Nippon Telegr & Teleph Corp <Ntt> Reinforcing method of glass fiber for optical transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5286343A (en) * 1976-01-13 1977-07-18 Fujikura Ltd Fiber for optical transmission
JPS53123152A (en) * 1977-04-01 1978-10-27 Nippon Telegr & Teleph Corp <Ntt> Optical transmission glass fiber and production therfor
JPS5434844A (en) * 1977-08-23 1979-03-14 Nippon Telegr & Teleph Corp <Ntt> Reinforcing method of glass fiber for optical transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041919U (en) * 1983-08-26 1985-03-25 日立電線株式会社 Multi-core bulk coated optical fiber

Also Published As

Publication number Publication date
JPS5742843B2 (en) 1982-09-10

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