JPS56135805A - Optical fiber cable - Google Patents

Optical fiber cable

Info

Publication number
JPS56135805A
JPS56135805A JP3816980A JP3816980A JPS56135805A JP S56135805 A JPS56135805 A JP S56135805A JP 3816980 A JP3816980 A JP 3816980A JP 3816980 A JP3816980 A JP 3816980A JP S56135805 A JPS56135805 A JP S56135805A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
optical fiber
fiber cores
sheath
filled
tension member
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.)
Pending
Application number
JP3816980A
Other versions
JPS6148681B2 (en )
Inventor
Yukinori Ishida
Hiroaki Kuranashi
Toru Yamanishi
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
Sumitomo Electric Ind 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

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4494Optical cables provided with water blocking or hydrophobic materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables

Abstract

PURPOSE:To prevent the entry of water and the decrease in strength by filling specific viscous liquid in the cushion layer consisting of the fibrous members formed between optical fiber cores and a sheath. CONSTITUTION:Plural pieces of fiber cores 4 having clad layers are disposed around a tension member 5 at equal intervals, and fibrous members 8 are filled in the cushion layer 7 formed between a sheath 6 and the tension member 5. Also, viscous liquid (e.g.; polybutene, white vaseline) 9 which makes the degree of swelling of the clad layers of the optical fiber cores 4 <=1.0% is filled therein. Thereby, the occurrence of microbending is suppressed and despite bending of this optical fiber cable at curvature of about several times the outside diameter, there is virtually no transmission loss.
JP3816980A 1980-03-27 1980-03-27 Expired JPS6148681B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3816980A JPS6148681B2 (en) 1980-03-27 1980-03-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3816980A JPS6148681B2 (en) 1980-03-27 1980-03-27

Publications (2)

Publication Number Publication Date
JPS56135805A true true JPS56135805A (en) 1981-10-23
JPS6148681B2 JPS6148681B2 (en) 1986-10-25

Family

ID=12517890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3816980A Expired JPS6148681B2 (en) 1980-03-27 1980-03-27

Country Status (1)

Country Link
JP (1) JPS6148681B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041011A (en) * 1983-05-19 1985-03-04 Philips Nv Optical fiber cable element and optical fiber cable and manufacture thereof
US4850672A (en) * 1988-02-19 1989-07-25 Siecor Corporation Strain compensated fiber optic cable
EP0422573A2 (en) * 1989-10-09 1991-04-17 Sumitomo Electric Industries, Ltd. Waterproof optical fiber cable
JP2008168496A (en) * 2007-01-11 2008-07-24 Taihei Mach Works Ltd Rotary pressing/joining apparatus for finger joint
US8314711B2 (en) 2007-05-31 2012-11-20 Raleigh L Cox Optical switch
US8334501B1 (en) * 2008-10-16 2012-12-18 Cox Christopher E Optical switch activator with glowable member
US8643498B1 (en) 2010-07-13 2014-02-04 Christopher E. Cox Optical switches for tank environments
US9383518B2 (en) 2012-12-14 2016-07-05 Christopher E. Cox Optical switch activator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041011A (en) * 1983-05-19 1985-03-04 Philips Nv Optical fiber cable element and optical fiber cable and manufacture thereof
US4659174A (en) * 1983-05-19 1987-04-21 U.S. Philips Corporation Optical cable element and cable, respectively, and method of manufacturing same
US4850672A (en) * 1988-02-19 1989-07-25 Siecor Corporation Strain compensated fiber optic cable
EP0422573A2 (en) * 1989-10-09 1991-04-17 Sumitomo Electric Industries, Ltd. Waterproof optical fiber cable
JP2008168496A (en) * 2007-01-11 2008-07-24 Taihei Mach Works Ltd Rotary pressing/joining apparatus for finger joint
US8314711B2 (en) 2007-05-31 2012-11-20 Raleigh L Cox Optical switch
US8334501B1 (en) * 2008-10-16 2012-12-18 Cox Christopher E Optical switch activator with glowable member
US8643498B1 (en) 2010-07-13 2014-02-04 Christopher E. Cox Optical switches for tank environments
US9383518B2 (en) 2012-12-14 2016-07-05 Christopher E. Cox Optical switch activator

Also Published As

Publication number Publication date Type
JPS6148681B2 (en) 1986-10-25 grant

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