Optical device and method for producing same

摘要

An optical device includes a glass substrate provided with one or more V-shaped grooves and an optical fiber array having one or more optical fibers. The optical fiber array is fixed within the V-shaped grooves of the glass substrate using a fixing adhesive. As viewed from above, a first region Z 1 (i.e., the region indicated by cross-hatching) and a second region Z 2 are provided on the optical fiber array, and the fixing adhesive is applied within the first region Z 1 . A refractive index matching resin, providing refractive index matching at least with the optical fibers, is disposed in the second region Z 2 , wherein the second region Z 2 may be surrounded by the first region Z 1.