PURPOSE: To achieve an optical fiber joint in which the diameter is almost equal to the outer diameter of sheath and which is flexible sufficiently, by inserting the vicinity of joint of glass fiber joined by melt-sticking in a hot-meeting adhesive and a heat schrinkable tube through heating.
CONSTITUTION: A hot-meeting adhesive 3' not shrinked and a heat shrinkable tube 4' are inserted into an optical fiber in which a sheath is removed in advance and is joined by meet-sticking, the assembely is heated with a heater to reinforce the joint. The outer diameter of the joint can be changed by determining the Young's modulus, thickness and volume of the adhesive 3 and tube 4. The diameter of the joint can be made almost equal to that of the sheath by removing only a part of the sheath radially and fitting the heat shrinkable tube, allowing to increase the strength.
TODA YUUICHI
MATSUNO KOUICHIROU
SUMITOMO ELECTRIC INDUSTRIES
| JP54099634B |
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