摘要:
A single-mode optical fiber/micro-lens comprising a core (2), a clad (4), and an optical fiber axis (3) extending through the core (2) and serving as an anamorphic focusing means, wherein a wedge shape consisting of slopes is formed at the tip end, facing a light source or an outgoing light beam, of the optical fiber (1), second slopes respectively forming an angle theta with a direction perpendicular to the optical fiber axis are symmetrically formed in a longitudinal direction at the crossing portion at the tip end of the wedge shape, and wedge-shaped micro-lens is provided at the end at which the two second slopes cross each other.