2008 年 74 巻 1 号 p. 77-81
A cylindrical-lensed optical fiber is used for single-mode fiber coupling for 980-nm pump lasers. This paper proposes a new machining method for the cylindrical-lensed end of an optical fiber. The method uses the bending force of the optical fiber which has homogeneous elasticity characteristics. The rational machining condition is clarified from an elasticity analysis.