JPS57181507A - Reinforcing method for juncture of optical fibers by molding - Google Patents

Reinforcing method for juncture of optical fibers by molding

Info

Publication number
JPS57181507A
JPS57181507A JP6568881A JP6568881A JPS57181507A JP S57181507 A JPS57181507 A JP S57181507A JP 6568881 A JP6568881 A JP 6568881A JP 6568881 A JP6568881 A JP 6568881A JP S57181507 A JPS57181507 A JP S57181507A
Authority
JP
Japan
Prior art keywords
juncture
molding
plastics
dies
foam
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.)
Granted
Application number
JP6568881A
Other languages
Japanese (ja)
Other versions
JPH0221561B2 (en
Inventor
Shigeo Sotodani
Koichi Abe
Mitsumasa Kurafuchi
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP6568881A priority Critical patent/JPS57181507A/en
Publication of JPS57181507A publication Critical patent/JPS57181507A/en
Publication of JPH0221561B2 publication Critical patent/JPH0221561B2/ja
Granted 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
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558—Reinforcement of splice joint

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To reinforce the core juncture of plastic clad optical fibers while relieving the stress concentrating in the foamed parts thereof in the stage of connecting and reinforcing said juncture with plastics by giving a specific temp. gradient to molding dies in their longitudinal direction and molding the plastics while defoaming the same. CONSTITUTION:Molding dies 40a, 40b are used in order to reinforce and connect the optical fiber cores (juncture) 2 of plastic clad fibers 1a, lab (nylon, etc.) by molding. Plastics 6a, 6b, 6c and glass fibers 7a, 7b for the purpose of reinforcement are put in the juction B between the dies 40a, 40b and overflows 8 having radiation fins are provided to both ends of the dies. The plastics are heated and molded by these dies while the temp. thereof is so controlled as to have a temp. gradient of DELTAT toward both ends l/2 with the central part as 0 in the direction of the length (l). Since the viscosity eta of the plastics is low at 0 in the central part and high at both ends l/2, the foam in the juncture B is pushed out and removed to both ends. There is no foam in the juncture and the concentration of stress owing to the presence of foam is prevented.
JP6568881A 1981-04-30 1981-04-30 Reinforcing method for juncture of optical fibers by molding Granted JPS57181507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6568881A JPS57181507A (en) 1981-04-30 1981-04-30 Reinforcing method for juncture of optical fibers by molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6568881A JPS57181507A (en) 1981-04-30 1981-04-30 Reinforcing method for juncture of optical fibers by molding

Publications (2)

Publication Number Publication Date
JPS57181507A true JPS57181507A (en) 1982-11-09
JPH0221561B2 JPH0221561B2 (en) 1990-05-15

Family

ID=13294190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6568881A Granted JPS57181507A (en) 1981-04-30 1981-04-30 Reinforcing method for juncture of optical fibers by molding

Country Status (1)

Country Link
JP (1) JPS57181507A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814106A (en) * 1981-07-17 1983-01-26 Nippon Telegr & Teleph Corp <Ntt> Reinforcing member for juncture of optical fibers and reinforcing method
JPS6198302A (en) * 1984-10-19 1986-05-16 Fujikura Ltd Heating device of thermal contraction tube
JPH02141706A (en) * 1988-11-22 1990-05-31 Fujikura Ltd Heat-shrinkable tube heater for reinforcing optical fiber
EP2851722A1 (en) * 2006-11-13 2015-03-25 Sumitomo Electric Industries, Ltd. Fusion splicing apparatus and method of use

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814106A (en) * 1981-07-17 1983-01-26 Nippon Telegr & Teleph Corp <Ntt> Reinforcing member for juncture of optical fibers and reinforcing method
JPS6198302A (en) * 1984-10-19 1986-05-16 Fujikura Ltd Heating device of thermal contraction tube
JPH022127B2 (en) * 1984-10-19 1990-01-17 Fujikura Ltd
JPH02141706A (en) * 1988-11-22 1990-05-31 Fujikura Ltd Heat-shrinkable tube heater for reinforcing optical fiber
EP2851722A1 (en) * 2006-11-13 2015-03-25 Sumitomo Electric Industries, Ltd. Fusion splicing apparatus and method of use

Also Published As

Publication number Publication date
JPH0221561B2 (en) 1990-05-15

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