Patent ID: 8885990

Claim:
An optical communication module comprising: a circuit substrate; a submount unit having a substantially block shape configured to be mounted on a mounting surface of the circuit substrate; wherein the submount unit comprises a connection surface mounted on the mounting surface, a surface mounting connection which is provided on the connection surface and comes in contact with a substrate-side connection of the mounting surface, an optical element mounting surface which is a surface in a direction substantially perpendicular to the connection surface, an optical element which is mounted on the optical element mounting surface, of which an optical axis is in substantially parallel with the mounting surface, and a transmission path which is wired over the connection surface and the optical element mounting surface to connect the optical element and the surface mounting connection; and an optical connection member configured to be interposed between the optical element of the optical element mounting surface and an optical fiber corresponding to the optical element, wherein the optical connection member abuts the submount unit, wherein a convex portion protrudes from the optical element mounting surface to abut against the optical connection member, and wherein the convex portion has a portal shape that encloses the optical element mounting surface.