Patent ID: 6724959
Filing Date: 2004-04-20
Classification: G02B

Abstract:
An optical fiber comprising a wedge-shaped lens having a tip end thereof supported in a ferrule with a conical shape at the tip end thereof, and formed into a rooftop shape together with the tip end of the ferrule, whereina ridge of the optical fiber is formed so as to include the center of a core at the tip end and to be inclined to have an inclination angle (&bgr;) with respect to a plane perpendicular to an optical axis of the optical fiber, the ridge is formed into one of a semi-cylindrical surface and a conical surface together with the conical surface of the ferrule and extends in a direction, the tip end is symmetrical with respect to only a single plane, and the tip end is adapted to be supported in a ferrule provided with an index indicating the direction in which the ridge extends, wherein the optical fiber is generally cylindrical with an outer circumference, and the ridge has a shoulder cut to form a plane perpendicular to the optical axis of the optical fiber.