Fiber array, method for fabricating the same and optical device using the fiber array

Abstract

The present invention provides a fiber array, in which light reflections caused by exfoliation of the end face adhesive due to volume increases of a peripheral adhesive disposed around the fibers are prevented. Stripped fibers are positioned such that they protrude with respect to an end face of a V-groove substrate provided with V-grooves, and the peripheral adhesive is formed flush with the end face of the V-groove substrate without protruding. Then, after being subjected to high temperature and high humidity, the peripheral adhesive swells and expands in the longitudinal direction, so that it protrudes in outward direction from the end face of the V-groove substrate and the end face of the fiber array, but the tip of the peripheral adhesive does not swell beyond the tips of the stripped fibers, so that it does not exert any stress leading to exfoliation at the coupling face with the adhesive.