CONNECTION STRUCTURE BETWEEN HOLDING COMPONENT AND OPTICAL WAVEGUIDE COMPONENT OF LIGHT INPUTTING MEMBER, AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a structure in which a light inputting member holding component and an optical waveguide component are joined by adhesive agent and adhesive agent is not interposed in an optical path, and by which insertion loss, or reduction or instability of propagating light quantity can be suppressed even after thermal cycle is applied.SOLUTION: An optical waveguide component comprises an optical waveguide substrate 18 having an optical waveguide 3. On one of a holding component 2 and the optical waveguide component, a projection part 14A having an adhesive surface 14a to which an adhesive agent cured layer 12 adheres and a recess 7 which partitions the adhesive surface are provided at a position (at one place) remote from the optical waveguide substrate toward a thickness direction T of the optical waveguide substrate. The adhesive agent cured layer 12 is provided on the adhesive surface 14a, and a gap 8 is provided between an end surface 9a of a light input member 9 and an end surface 3a of the optical waveguide 3.