| 摘要 |
An optical communication module for communicating a light signal including a groove portion whose section is V-shaped and provided on the surface of an optical waveguide substrate, on one of two surfaces of which groove portion a mirror is formed by the coating with a metal film and in the vicinity of the other surface of which groove portion, a tip of an optical waveguide on the optical waveguide substrate is provided, whereby a signal light guided by the optical waveguide is reflected by the mirror of the metal film so as to be incident on a light-receiving element disposed on the surface of the optical waveguide substrate.
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