JPS57204008A - High strength assembly unit - Google Patents

High strength assembly unit

Info

Publication number
JPS57204008A
JPS57204008A JP56088827A JP8882781A JPS57204008A JP S57204008 A JPS57204008 A JP S57204008A JP 56088827 A JP56088827 A JP 56088827A JP 8882781 A JP8882781 A JP 8882781A JP S57204008 A JPS57204008 A JP S57204008A
Authority
JP
Japan
Prior art keywords
optical fiber
fiber wires
assembly unit
high strength
coefficient
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
JP56088827A
Other languages
Japanese (ja)
Inventor
Osamu Maeda
Koichi Nakagawa
Shinzo Yamakawa
Nobuo Inagaki
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 JP56088827A priority Critical patent/JPS57204008A/en
Publication of JPS57204008A publication Critical patent/JPS57204008A/en
Pending 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
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering

Landscapes

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

Abstract

PURPOSE:To suppress transmission loss at low temperature and to obtain a high strength assembly unit which has high density, reduces weight and a small diameter, by covering optical fiber wires each with a plastic tape having a coefficient of linear expansion nearly equal to that of the fiber wires, and providing a coating around the external circumference of each tape. CONSTITUTION:A glass fiber 11 is covered with a primary coating 12 to form an optical fiber wire, and plural optical fiber wires are bundled by a plastic tape 15 having a coefficient of linear expansion nearly equal to those of the optical fiber wires and also coated as shown by 14. Since the plastic tape 15 has the coefficient of linear expansion nearly equal to those of the optical fiber wires, none of the optical fiber wires has buckling at low temperature and transmission loss. A tension member, etc., is unnecessary, so the high strength assembly unit having high density, reduced weight and a small diameter is obtained.
JP56088827A 1981-06-11 1981-06-11 High strength assembly unit Pending JPS57204008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56088827A JPS57204008A (en) 1981-06-11 1981-06-11 High strength assembly unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56088827A JPS57204008A (en) 1981-06-11 1981-06-11 High strength assembly unit

Publications (1)

Publication Number Publication Date
JPS57204008A true JPS57204008A (en) 1982-12-14

Family

ID=13953761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56088827A Pending JPS57204008A (en) 1981-06-11 1981-06-11 High strength assembly unit

Country Status (1)

Country Link
JP (1) JPS57204008A (en)

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