Optical connector, multi-chip module and manufacturing method of optical connector

A manufacturing method of an optical connector, comprising:

• inserting an end portion of an optical fiber into an optical fiber insertion hole of a connector in such a manner that the end portion of the optical fiber sticks out of a front face of the connector, an end surface of the end portion of the optical fiber inserted into the optical fiber insertion hole appearing on the front face of the connector, and the front face of the connector being tilted at about 45 degrees angle with respect to the direction that the optical fiber insertion hole extends, the connector having a window that allows light input and output and is positioned below the front face;
• cutting the end portion of the optical fiber sticking out of the front face so that the end surface of the end portion of the optical fiber becomes flush with the front face;
• and
• forming the end surface of the optical fiber inserted into the optical fiber insertion hole as a mirror surface that is a reflection surface made flush with the front face and reflects an optical signal coming via one of a light transmission route extending through the optical fiber insertion hole and a light transmission route perpendicular to the direction that the optical fiber insertion hole extends, toward the other.

A multi-chip module comprising:

• a board and an optical connector, the optical connector including:
• an optical fiber;
• and
• a connector that includes:
• (i) an optical fiber insertion hole that an end portion of the optical fiber is inserted into;
• (ii) a front face that an end surface of the optical fiber inserted into the optical fiber insertion hole appears and that is tilted at about 45 degrees angle with respect to the direction that the optical fiber insertion hole extends;
• and
• (iii) a window that allows light input and output and is positioned below the front face,
• a guide unit that defines a guide hole on the side opposite to the front face;
• the end surface of the optical fiber inserted into the optical fiber insertion hole being formed as a reflection surface that is flush with the front face and reflects an optical signal coming via one of a light transmission route extending through the optical fiber insertion hole and a light transmission route perpendicular to the direction that the optical fiber insertion hole extends, toward the other,
• the optical signal coming into the connector from the window, and being reflected on the reflection surface at about 90 degrees, and going to the direction that the optical fiber insertion hole extends.