JACKET REMOVING METHOD OF OPTICAL FIBER CABLE

摘要

PURPOSE:To remove a jacket without deteriorating a cable by placing a terminal part of the cable between electrodes which are arranged at an interval, and exposing it to a plasma atmosphere formed between both electrodes. CONSTITUTION:The terminal part of the cable 1 is inserted from a hole 13 to arrange the part from which the jacket 8 is removed between both electrode plates 15 and 15'; and a vacuum chamber 10 is evacuated from a discharge path 12 and then gaseous fluoride or other gas suitable for jacket removal is admitted into the vacuum chamber 10. Then while a matching circuit 19 performs matching so that optimum performance is obtained, an alternating current is flowed from a high frequency power source 17 to cause glow discharge between both electrode plates 15 and 15', and then the gas between both electrode plates 15 and 15' enters a plasma state to allow ions in plasma to strike the part of the jacket 8 of the cable 1 between both electrode plates 15 and 15'; and the jacket 8 is decomposed and removed gradually at a molecular level and the pressure in the vacuum chamber 10 is returned to the atmospheric pressure after the jacket removing operation is completed to extract the cable 1 from the hole 13.