JPS5726809A - Refractory optical fiber cable - Google Patents

Refractory optical fiber cable

Info

Publication number
JPS5726809A
JPS5726809A JP10146480A JP10146480A JPS5726809A JP S5726809 A JPS5726809 A JP S5726809A JP 10146480 A JP10146480 A JP 10146480A JP 10146480 A JP10146480 A JP 10146480A JP S5726809 A JPS5726809 A JP S5726809A
Authority
JP
Japan
Prior art keywords
optical fiber
water
core
increase
transmission loss
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
JP10146480A
Other languages
Japanese (ja)
Other versions
JPS6216407B2 (en
Inventor
Chihaya Tanaka
Hiroaki Kuranashi
Masao Yuto
Yasunori Saito
Hiroaki Horima
Yuji Kameo
Shigeru Tanaka
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
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries 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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10146480A priority Critical patent/JPS5726809A/en
Publication of JPS5726809A publication Critical patent/JPS5726809A/en
Publication of JPS6216407B2 publication Critical patent/JPS6216407B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4436—Heat resistant

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Insulated Conductors (AREA)

Abstract

PURPOSE:To suppress or delay an increase of a transmission loss, which is caused by heat from the outside, and to elevate a heat resisting property, by filling a space between an optical fiber core and an external sheathing layer, with a filling material consisting of an inorganic compound having water of crystallization or water of structure. CONSTITUTION:In an optical fiber cable consisting of an optical fiber core 1, a tension member 3, an intervened core 4 and an external sheathing layer 2, a space between the core 1 and the sheatling layer 2 is filled with only one or a mixture 5, of a compound having water of crystallization such as Na2SO4.10H2O, SiSO4. 6H2O or Fe2(SO4)3.9H2O, etc., and a compound having water of structure such as Al2O3.3H2O, etc. In this way, an increase of a transmission loss, which is caused by heat from the outside such as a fire, etc. is suppressed, or a time reaching an increase of a transmission loss is delayed.
JP10146480A 1980-07-24 1980-07-24 Refractory optical fiber cable Granted JPS5726809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10146480A JPS5726809A (en) 1980-07-24 1980-07-24 Refractory optical fiber cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10146480A JPS5726809A (en) 1980-07-24 1980-07-24 Refractory optical fiber cable

Publications (2)

Publication Number Publication Date
JPS5726809A true JPS5726809A (en) 1982-02-13
JPS6216407B2 JPS6216407B2 (en) 1987-04-13

Family

ID=14301424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10146480A Granted JPS5726809A (en) 1980-07-24 1980-07-24 Refractory optical fiber cable

Country Status (1)

Country Link
JP (1) JPS5726809A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0564807U (en) * 1983-05-19 1993-08-27 エヌ・ベー・フィリップス・フルーイランペンファブリケン Optical cable element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0564807U (en) * 1983-05-19 1993-08-27 エヌ・ベー・フィリップス・フルーイランペンファブリケン Optical cable element

Also Published As

Publication number Publication date
JPS6216407B2 (en) 1987-04-13

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