| 摘要 |
An optical waveguide device has a casing, a base member housed in the casing, at least one input optical fiber cable and at least one output optical fiber cable which are introduced into the casing, an optical waveguide substrate mounted on the base member and connected to respective ends of the input and output optical fiber cables for transmitting a light signal from the input optical fiber cable to the output optical fiber cable, support bases and holders fixed to the base member for holding end portions of the input and output optical fiber cables on the base member, and a bushing or bushings in the casing for introducing the input and output optical fiber cables into the casing. The optical waveguide substrate has an optical waveguide branched into a plurality of waveguide paths, and input and output optical fiber cables are coupled to each other through the optical waveguide.
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