| 摘要 |
PURPOSE:To easily adjust optical axes, to simplify constitutional parts and to reduce the cost of the title terminal by thinly forming a multi-mode optical fiber like a taper and joining a single mode optical fiber with a part having the same diameter as the core diameter of the single mode optical fiber. CONSTITUTION:The multi-mode optical fiber 4 having a prescribed core diameter H1 is heated and extended by a burner 5 to form a taper part 6 and the core diameter H2 of the taper part 6 is allowed to coincide with the core diameter H3 of the single mode optical fiber 7. The fiber 4 is cut off at the approximately center position of the taper part 6, the end face of the cut part is abutted upon the end face of the single mode optical fiber 7 to allow respective optical axes to coincide with each other and then the abutted end faces are joined by fusion splice based upon discharge between electrodes 5a. The multi-mode optical fiber 4 is bonded and fixed in a ferrule by a bonding agent 9. Consequently, the optical axes can be easily adjusted without using expensive equipment for assembling and the cost of the device can be reduced. |
