Patent ID: 6834071
Filing Date: 2004-12-21
Classification: G02B

Abstract:
A spot size converter with a generally elongated rectangular block shape, comprising:an optical axis elongating along an elongated direction of the spot size converter; a generally rectangular incident area crossing the optical axis, with a first slenderness ratio adapted to meet with an exit area of a light source; a generally rectangular exit area crossing the optical axis, with a second slenderness ratio different from the first slenderness ratio adapted to meet with an incident area of a light receiving object; and a surrounding side wall consisting of a plurality of flat planes defining a cross section orthogonal to the optical axis and defining a light guide in the spot size converter, wherein at least one of the flat planes of the surrounding side wall inclines so that one side of the cross section defined by the flat planes of the surrounding side wall inclines to the optical axis of the spot size converter and every axis of a width direction and a thickness direction defining the generally rectangular incident area.