| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding and drawing device for an optical fiber for manufacturing an optical fiber coupler having excellent polarization crosstalk characteristics with a high yield. SOLUTION: In a welding and drawing device for an optical fiber which is provided with a pressing jig 4 for pressing the optical fiber 1, a heating burner for heating and welding the optical fiber 1 pressed by the pressing jig 4 and a drawing device for drawing the optical fiber 1 heated and welded by the heating burner, the pressing jig 4 is composed so as to move left and right. |
