JPS6461710A - Connecting box for optical fiber cable - Google Patents

Connecting box for optical fiber cable

Info

Publication number
JPS6461710A
JPS6461710A JP62220068A JP22006887A JPS6461710A JP S6461710 A JPS6461710 A JP S6461710A JP 62220068 A JP62220068 A JP 62220068A JP 22006887 A JP22006887 A JP 22006887A JP S6461710 A JPS6461710 A JP S6461710A
Authority
JP
Japan
Prior art keywords
case
hydrogen
oxidation
prevented
optical fiber
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
JP62220068A
Other languages
Japanese (ja)
Inventor
Masao Sanai
Yuichi Yamada
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.)
Sumitomo Electric Industries Ltd
Original Assignee
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP62220068A priority Critical patent/JPS6461710A/en
Publication of JPS6461710A publication Critical patent/JPS6461710A/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
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre 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
    • G02B6/44382—Means specially adapted for strengthening or protecting the cables the means comprising hydrogen absorbing materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To completely prevent the generation of hydrogen from an aluminum case by providing a corrosion resistant oxide film or coated film for preventing the oxidation of aluminum on the inside surface of the case. CONSTITUTION:The oxidation of the case 1 made of Al or Al alloy of this connecting box is prevented by providing the corrosion resistant oxide film or the coated film 13 for preventing the oxidation of Al on at least the inside surface of the case in order to eliminate the deterioration in the transmission characteristic of a glass core optical fiber by hydrogen. The contact of the Al of the case material and the moisture in the air in the case or the condensed water drops thereof is prevented by the above-mentioned film or coated film 3 and, therefore, the chemical reaction of the Al case and water is prevented and the amt. of the hydrogen to be generated from the case is decreased to zero. The increase in the transmission loss by hydrogen is, therefore, minimized to a negligible level and the stable light transmission characteristic is maintained for a long period of time.
JP62220068A 1987-09-01 1987-09-01 Connecting box for optical fiber cable Pending JPS6461710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62220068A JPS6461710A (en) 1987-09-01 1987-09-01 Connecting box for optical fiber cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62220068A JPS6461710A (en) 1987-09-01 1987-09-01 Connecting box for optical fiber cable

Publications (1)

Publication Number Publication Date
JPS6461710A true JPS6461710A (en) 1989-03-08

Family

ID=16745440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62220068A Pending JPS6461710A (en) 1987-09-01 1987-09-01 Connecting box for optical fiber cable

Country Status (1)

Country Link
JP (1) JPS6461710A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915357A1 (en) * 1997-04-15 1999-05-12 Helios Inc. Metallic tubes for housing optical fibers and process for producing the same
EP1059549A1 (en) 1999-06-01 2000-12-13 Alcatel A submarine casing for a submarine optical cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171920A (en) * 1983-03-18 1984-09-28 Hitachi Cable Ltd Connecting method and connecting sleeve of optical fiber composite electric wire
JPS60213909A (en) * 1984-04-10 1985-10-26 Nippon Telegr & Teleph Corp <Ntt> Composite parts for submarine optical cable anchoring device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171920A (en) * 1983-03-18 1984-09-28 Hitachi Cable Ltd Connecting method and connecting sleeve of optical fiber composite electric wire
JPS60213909A (en) * 1984-04-10 1985-10-26 Nippon Telegr & Teleph Corp <Ntt> Composite parts for submarine optical cable anchoring device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915357A1 (en) * 1997-04-15 1999-05-12 Helios Inc. Metallic tubes for housing optical fibers and process for producing the same
EP0915357A4 (en) * 1997-04-15 2000-08-09 Helios Inc Metallic tubes for housing optical fibers and process for producing the same
US6219482B1 (en) 1997-04-15 2001-04-17 Helios Inc. Metallic tubes for housing optical fibers and process for producing the same
EP1059549A1 (en) 1999-06-01 2000-12-13 Alcatel A submarine casing for a submarine optical cable

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