Patent ID: 8401396

Claim:
An optical communication module, comprising: an optical package including at least one semiconductor optical device; an optical filter for reflecting light of a specific wavelength and transmitting light of an other wavelength; an optical block comprising a transparent material and the optical filter; a housing that houses the optical package and the optical block; an in-housing circuit board housed in the housing and mounting a peripheral electrical circuit for the optical package thereon; and an electrical connector electrically connected to the in-housing circuit board and exposed at a bottom surface of the housing, wherein the optical block further comprises a front lens portion at a front side face of the housing, a rear lens portion at a rear side face of the housing, a light inputting port, a light outputting port, a pin portion protruding in a predetermined shape toward outside of the housing near the front lens portion, and a hole portion adapted to be engaged with a pin portion of an other optical communication module near the rear lens portion; wherein the optical filter is arranged to obliquely intersect with an optical axis passing through the front lens portion and the rear lens portion at a predetermined angle, wherein the optical package is arranged such that an optical axis between the optical filter and the optical package is substantially orthogonal to an optical axis between the front lens portion and the optical filter, and wherein the optical package and the optical block are held afloat in the housing.