Method of production of optical waveguide module

A method of production of an optical waveguide module having a plurality of chips comprising the steps of:

• forming on a wafer in parallel to the planar direction a plurality of optical waveguide patterns for every chip with a plurality of core regions formed at the internal portion of a clad layer;
• forming at least two positioning grooves on the wafer in parallel to a longitudinal direction of the optical waveguide patterns;
• cutting the wafer to prepare an optical waveguide chip assembly having an end face, said waveguide chip assembly being formed with a plurality of optical waveguide patterns corresponding to a plurality of chips and at least two positioning grooves;
• preparing an optical fiber array assembly having an end face, said array assembly having a plurality of optical fiber array cables, each said array cables having an end face, wherein said plurality of cables corresponds to each of the plurality of optical waveguide patterns of the optical waveguide chip assembly and at least two positioning portions corresponding to the two positioning grooves of the optical waveguide chip assembly;
• connecting the end face of the optical waveguide chip assembly and optical fiber array assembly while aligning the positioning grooves of the optical waveguide chip assembly with the axial center of the positioning portions of the optical fiber array assembly;
• and
• dividing the connected optical waveguide chip assembly and optical fiber array assembly into units of individual optical waveguide modules.