JPS5562405A - Optical fiber core - Google Patents

Optical fiber core

Info

Publication number
JPS5562405A
JPS5562405A JP13442978A JP13442978A JPS5562405A JP S5562405 A JPS5562405 A JP S5562405A JP 13442978 A JP13442978 A JP 13442978A JP 13442978 A JP13442978 A JP 13442978A JP S5562405 A JPS5562405 A JP S5562405A
Authority
JP
Japan
Prior art keywords
optical fiber
layer
fiber core
foam
constitution
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
JP13442978A
Other languages
Japanese (ja)
Other versions
JPS577407B2 (en
Inventor
Masaaki Kawase
Katsuya Yamashita
Shinya Kojima
Yukiyasu Negishi
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 JP13442978A priority Critical patent/JPS5562405A/en
Publication of JPS5562405A publication Critical patent/JPS5562405A/en
Publication of JPS577407B2 publication Critical patent/JPS577407B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent application of uneven side pressure upon an optical fiber by providing the cushion layer comprising filling liquid such as oil or the like in foam- or sponge form material.
CONSTITUTION: The outer side of an optical fiber 1 which is applied with the clad of the thin layer of urethane, Kynar, or epoxy is covered with the cushion layer 5 of songe- or foam-form material filled with liquid such as oil or the like. If the layer 5 is covered with a secondary convering 3 of metal or plastic material, the optical fiber core is formed. The constitution of small compression against water pressure of this layer 5 prevents the shrinkage and deformation of the covering 3, obviates the application of uneven side pressure to the optical fiber 1 and provides the optical fiber core best suited for submarine cable or the like.
COPYRIGHT: (C)1980,JPO&Japio
JP13442978A 1978-11-02 1978-11-02 Optical fiber core Granted JPS5562405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13442978A JPS5562405A (en) 1978-11-02 1978-11-02 Optical fiber core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13442978A JPS5562405A (en) 1978-11-02 1978-11-02 Optical fiber core

Publications (2)

Publication Number Publication Date
JPS5562405A true JPS5562405A (en) 1980-05-10
JPS577407B2 JPS577407B2 (en) 1982-02-10

Family

ID=15128164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13442978A Granted JPS5562405A (en) 1978-11-02 1978-11-02 Optical fiber core

Country Status (1)

Country Link
JP (1) JPS5562405A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59208506A (en) * 1983-05-12 1984-11-26 Sumitomo Electric Ind Ltd Optical fiber
US4703997A (en) * 1984-03-03 1987-11-03 Dainichi-Nippon Cables, Ltd. Waterproof optical fiber cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53123152A (en) * 1977-04-01 1978-10-27 Nippon Telegr & Teleph Corp <Ntt> Optical transmission glass fiber and production therfor
JPS5563504U (en) * 1978-10-23 1980-04-30

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53123152A (en) * 1977-04-01 1978-10-27 Nippon Telegr & Teleph Corp <Ntt> Optical transmission glass fiber and production therfor
JPS5563504U (en) * 1978-10-23 1980-04-30

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59208506A (en) * 1983-05-12 1984-11-26 Sumitomo Electric Ind Ltd Optical fiber
US4703997A (en) * 1984-03-03 1987-11-03 Dainichi-Nippon Cables, Ltd. Waterproof optical fiber cable

Also Published As

Publication number Publication date
JPS577407B2 (en) 1982-02-10

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