JPS5683703A - Optical fiber for hermetic sealing - Google Patents

Optical fiber for hermetic sealing

Info

Publication number
JPS5683703A
JPS5683703A JP16195979A JP16195979A JPS5683703A JP S5683703 A JPS5683703 A JP S5683703A JP 16195979 A JP16195979 A JP 16195979A JP 16195979 A JP16195979 A JP 16195979A JP S5683703 A JPS5683703 A JP S5683703A
Authority
JP
Japan
Prior art keywords
optical fiber
hermetic sealing
coefft
thermal expansion
glass
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
JP16195979A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Mizuta
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16195979A priority Critical patent/JPS5683703A/en
Publication of JPS5683703A publication Critical patent/JPS5683703A/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
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea cables
    • G02B6/4428—Penetrator systems in pressure-resistant devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To enable the coupling of an optical fiber to a hermetic case to be achieved with high reliability by providing a member of which the coefft. of thermal expansion is gradually changing from the value nearly equal to the coefft. of thermal expansion of the optical fiber to a desired coefft. of thermal expansion, to a part of the optical fiber. CONSTITUTION:A mathcing part 2 which is first stuck and grown with the same material as that of the outside circumference of an optical fiber 1 and is gradually changed to the material necessary for hermetic sealing such as kovar glass is provided to part of the optical fiber 1, and further the part of the uniform layer of the glass required for hermetic sealing such as kovar glass is fused 3 to the outer side thereof, and the end coating layer 4 comprising the matching part 2 and the fused part 3 provided in this way is sealed by means of an insulating material 5 for hermetic sealing, such as kovar glass, to an optical connector, whereby the optical fiber 1 is tightly sealed and led into the optical connector.
JP16195979A 1979-12-13 1979-12-13 Optical fiber for hermetic sealing Pending JPS5683703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16195979A JPS5683703A (en) 1979-12-13 1979-12-13 Optical fiber for hermetic sealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16195979A JPS5683703A (en) 1979-12-13 1979-12-13 Optical fiber for hermetic sealing

Publications (1)

Publication Number Publication Date
JPS5683703A true JPS5683703A (en) 1981-07-08

Family

ID=15745310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16195979A Pending JPS5683703A (en) 1979-12-13 1979-12-13 Optical fiber for hermetic sealing

Country Status (1)

Country Link
JP (1) JPS5683703A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5957203A (en) * 1982-09-27 1984-04-02 Toshiba Corp Sealing system of optical waveguide
JPS59164005U (en) * 1983-04-16 1984-11-02 古河電気工業株式会社 Airtight optical transmission body penetration part
JPS59164004U (en) * 1983-04-16 1984-11-02 古河電気工業株式会社 Airtight optical transmission body penetration part
US4653846A (en) * 1983-03-28 1987-03-31 Kokusai Denshin Denwa Kabushiki Kaisha Optical fiber hermetic fixing structure of feedthrough for optical submarine repeater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5957203A (en) * 1982-09-27 1984-04-02 Toshiba Corp Sealing system of optical waveguide
US4653846A (en) * 1983-03-28 1987-03-31 Kokusai Denshin Denwa Kabushiki Kaisha Optical fiber hermetic fixing structure of feedthrough for optical submarine repeater
JPS59164005U (en) * 1983-04-16 1984-11-02 古河電気工業株式会社 Airtight optical transmission body penetration part
JPS59164004U (en) * 1983-04-16 1984-11-02 古河電気工業株式会社 Airtight optical transmission body penetration part

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