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Splice protection heater, fusion splicer including the splice protection heater, and fusion splicing method

A heater and welding technology, applied in the direction of coupling of optical waveguides, which can solve the problems of disconnection and damage of the welding part

Active Publication Date: 2010-04-21
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a condition in which many fused-spliced ​​fibers waiting for protection treatment accumulates may cause a problem that the fused portion is disconnected by external force, damaged, or the like

Method used

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  • Splice protection heater, fusion splicer including the splice protection heater, and fusion splicing method
  • Splice protection heater, fusion splicer including the splice protection heater, and fusion splicing method
  • Splice protection heater, fusion splicer including the splice protection heater, and fusion splicing method

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Embodiment Construction

[0035] figure 1 is a schematic diagram showing a joint protection heater according to a first embodiment of the present invention. The splice protection heater 33 performs thermal protection treatment on the optical fiber 1 (single strand or optical fiber ribbon) through the heating portion 4 at the fusion splice portion 2 covering the protection sleeve. The heating section 4 has a pair of clamps 6 provided at both side ends of the base 5 , and a heating element 7 is arranged in the middle of the heating section 4 . The heating part 4 supports the fusion-spliced ​​optical fiber through the left and right clamps 6 so that it will not loosen.

[0036] After the welding part 2 covered with the protective sleeve 3 is placed on the heating element 7, the heating part 4 is covered by the heater outer cover ( figure 1not shown in the figure) surrounded. Next, the switch 8 is turned on, power is supplied to the heating element 7, and the protective sleeve 3 is thermally shrunk. Wh...

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Abstract

A heating reinforcing device for carrying out reinforcement quickly and efficiently in an adequate heating time, a fusion connecting device including the heating reinforcing device, and a fusion connecting method. A heating unit of the heating reinforcing device is used for heating and shrinking the reinforcing sleeve so placed to cover a fusion connecting section and has heaters turned on / off byindependent switches and capable of individually heating reinforcing selves at different timings or a heater turned on / off by a switch. The device may comprise a detecting unit for detecting whether ornot a reinforcing sleeve is placed on the heater and turning on / off a switch.

Description

technical field [0001] The present invention relates to a splicing protection heater which protects an optical fiber fusion splicing portion by thermally shrinking a protective sleeve covering the fusion splicing portion, a fusion splicing machine including the splicing protection heater, and a fusion splicing method. Background technique [0002] Fusion splicing of optical fibers is performed by heating and melting the spliced ​​end portions of the optical fibers exposed by removing the protective coating on the spliced ​​ends of the optical fibers. Since the part of the spliced ​​optical fiber that has exposed the glass fiber is structurally fragile, it is necessary to protect this part with a protective sleeve. The usual design for protective sleeves is to enclose a hot-melt adhesive resin and a stretched object (also called a reinforcing rod) inside a heat-shrinkable tube that shrinks radially when it is heated (see, for example, Japanese Patent Application 09 -297243)....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/255
Inventor 佐藤龙一郎伊藤谦辅渡边勤
Owner SUMITOMO ELECTRIC IND LTD