GB2013927A - Manufacture of elongate optical fibre waveguide structures - Google Patents

Manufacture of elongate optical fibre waveguide structures

Info

Publication number
GB2013927A
GB2013927A GB7902706A GB7902706A GB2013927A GB 2013927 A GB2013927 A GB 2013927A GB 7902706 A GB7902706 A GB 7902706A GB 7902706 A GB7902706 A GB 7902706A GB 2013927 A GB2013927 A GB 2013927A
Authority
GB
United Kingdom
Prior art keywords
fibres
tube
fibre
manufacture
drum
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.)
Withdrawn
Application number
GB7902706A
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.)
Telephone Cables Ltd
Original Assignee
Telephone Cables 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 Telephone Cables Ltd filed Critical Telephone Cables Ltd
Priority to GB7902706A priority Critical patent/GB2013927A/en
Publication of GB2013927A publication Critical patent/GB2013927A/en
Withdrawn legal-status Critical Current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
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4484—Manufacturing methods of optical cables with desired surplus length between fibres and protection features
    • 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
    • G02B6/4479—Manufacturing methods of optical cables

Abstract

In the manufacture of an optical fibre cable, or a unit for incorporation in a cable, consisting of one or more optical fibres surrounded by a loosely fitting tube, by extruding the tube around the fibre or fibres and winding the assembly on to a drum, longitudinal relaxation of the fibre or fibres within the tube is achieved by rotating a drum on which the assembly is wound, while at least one end of the fibre or each fibre has freedom of movement. Relaxation of the fibres occurs as a result of oscillation and slippage of the fibres within the tube, causing the fibres to retract from the free end or ends of the tube: to enable slippage to take place, the friction between the fibres and tube must be low, and the drum is rotated slowly.
GB7902706A 1978-01-30 1979-01-25 Manufacture of elongate optical fibre waveguide structures Withdrawn GB2013927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7902706A GB2013927A (en) 1978-01-30 1979-01-25 Manufacture of elongate optical fibre waveguide structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB366478 1978-01-30
GB7902706A GB2013927A (en) 1978-01-30 1979-01-25 Manufacture of elongate optical fibre waveguide structures

Publications (1)

Publication Number Publication Date
GB2013927A true GB2013927A (en) 1979-08-15

Family

ID=26238501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902706A Withdrawn GB2013927A (en) 1978-01-30 1979-01-25 Manufacture of elongate optical fibre waveguide structures

Country Status (1)

Country Link
GB (1) GB2013927A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049156A2 (en) * 1980-10-01 1982-04-07 BICC Public Limited Company Method of and arrangement for manufacturing an optical cable element
EP0185615A2 (en) * 1984-12-14 1986-06-25 Nokia-Maillefer S.A. Process for making a fibre optic cable, cable obtained by the process and apparatus for carrying out the process
EP2275849A2 (en) * 2009-06-26 2011-01-19 Nexans Fiber optic cable with clear buffer tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049156A2 (en) * 1980-10-01 1982-04-07 BICC Public Limited Company Method of and arrangement for manufacturing an optical cable element
EP0049156A3 (en) * 1980-10-01 1982-06-09 Bicc Public Limited Company Improvements in or relating to optical cable elements
EP0185615A2 (en) * 1984-12-14 1986-06-25 Nokia-Maillefer S.A. Process for making a fibre optic cable, cable obtained by the process and apparatus for carrying out the process
EP0185615A3 (en) * 1984-12-14 1987-09-09 Maillefer S.A. Process for making a fibre optic cable, cable obtained by the process and apparatus for carrying out the process
EP2275849A2 (en) * 2009-06-26 2011-01-19 Nexans Fiber optic cable with clear buffer tubes

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)