Photoelectric coupling assembly and method of coupling optical fibers and light receiving/emitting elements

A photoelectric coupling assembly comprising:

• (1) an optical fiber;
• (2) a plug having a through-hole in which the optical fiber is held in a manner where a distal end of the optical fiber protrudes from the plug;
• and
• (3) an optical head member including a photoelectric conversion unit having a light receiving/emitting element including a light receiving/emitting unit, and an aligning member having a guide hole to guide the distal end of the optical fiber to the light receiving/emitting unit when the plug and the optical head are detachably fitted into each other, wherein
• the photoelectric conversion unit further includes an element electrode of the light receiving/emitting element on a first contacting surface thereof that faces the aligning member, and
• the aligning member further includes an electrical wiring unit configured and arranged to establish conduction with the element electrode of the photoelectric conversion unit on an outer side surface and a second contacting surface thereof that faces the first contacting surface of the photoelectric conversion unit.