APPARATUS FOR ADDING DOPING SOLUTION FOR OPTICAL FIBER CORE

摘要

PURPOSE: A doping solution adding apparatus adding a doping solution into an optical fiber core layer is provided to reduce the amount of the doping solution in a pipe member by inserting an insertion rod into the pipe member for produce the large amount of optical fibers with the minimum amount of the doping solution. CONSTITUTION: A doping solution adding apparatus adding a doping solution into an optical fiber core layer includes a pipe member (10), a supporting block (20), a doping solution insertion pipe (30), and a doping solution storage unit (40). The partially sintered core layer (11) is attached to the inner surface of the pipe member. The supporting block includes a mounting unit and an insertion rod (22). The pipe member is mounted on the mounting unit. The insertion rod is protruding from the mounting unit and is inserted into the pipe member. A doping solution insertion pipe is connected to the supporting block to be connected to the inside of the pipe member, and inserts the doping solution into the pipe member. The doping solution storage unit is combined to one end of the doping solution insertion pipe.