Optical part for two-way optical communication

摘要

An optical guide 43 is partly buried in a lens 43 on the diameter of its aperture, the lens 43 converging received light incident from the end face of an optical fiber onto a light receiving element 15 and the optical conductor 33 having a refractive index larger than that of the lens 43 . The optical guide 33 is composed of a buried portion 33 - 1 and an extending portion 33 - 2 , and transmitting light 22 incident on the optical guide 33 from the end face 33 c of the extending portion 33 - 2 is reflected by a reflecting surface 33 a and launched into the optical fiber. The transmitting light 22 is guided by the optical guide 33 to the end face of the optical fiber without leakage to the receiving-side portion.