The utility model relates to an optical module, this optical module possesses: si photon light wave return circuit has the fiber waveguide including si core and siO2 covering, just the fiber waveguideexit end face department for with exit end face vertically direction has inclination, the fiber waveguide the center of exit end face department with including of si photon light wave return circuitthe center of exit end face 's side is compared, to the direction skew that the fiber waveguide inclined, and the optic fibre piece, according to with the fixed fiber array of inclination that the fiber waveguide is the same. The utility model provides a problem be provide have with fiber array be connected can the high density optical module of ground installation. The utility model discloses anusage is the optical module such as smooth transceiver that are applicable to small -size high density.