OPTICAL COMMUNICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a low-cost and high-reliability optical communication device which has a spread part for pitch conversion since an optical fiber pitch P1 of a multiple optical fiber ribbon is 250 μm while a pitch P2 of an optical elements needs to be ≥500 μm when the optical elements are mounted on a substrate and the optical fiber pitch needs to be expanded somewhere when the multiple optical fiber ribbon is connected to a substrate mounted with optical elements as many as the optical fibers.

SOLUTION: The optical communication device includes: a connector which holds M (M≥4) optical fibers arrayed in parallel at the fixed pitch P1 and project portions of the fibers backward, a substrate provided with M parallel V grooves to which the optical fibers projecting from the connector are inserted and fixed and M parallel optical waveguides connecting therewith at the pitch P2 (500 to 1,500 μm) wider than the pitch P1; M optical elements which are provided at ends of the optical waveguides on the substrate; and a package which has lead pins and where the connector is fixed on the front and the substrate is fixed on the back. The optical fibers are curved at the spread part ES between the connector and substrate in the package to increase the pitch of the optical fibers from P1 to P2.

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