Optical transmission device and manufacturing method thereof

摘要

An optical transmission device includes: a first cage and a second cage provided in parallel on a top surface of a substrate, into which modules connectable to an optical transmission path are inserted, respectively; a first heat sink including: a first main body arranged along surfaces of the first cage and the second cage at the opposite side to the substrate, and a first plate member rising from a bottom surface of the first main body which faces the substrate, and arranged between the first cage and the second cage.

主权项

1. An optical transmission device comprising:
a first cage and a second cage provided in parallel on a top surface of a substrate, into which modules connectable to an optical transmission path are inserted, respectively; a first heat sink including:
a first main body arranged along surfaces of the first cage and the second cage at a second side of the substrate that is an opposite side relative to the top surface of the substrate,a first plate member rising from a bottom surface of the first main body which faces the substrate, and arranged between the first cage and the second cage,a first pedestal portion rising from the bottom surface of the first main body at one end portion of the first main body in a direction perpendicular to the first plate member, anda second pedestal portion rising from the bottom surface of the first main body at the other end portion of the first main body; a heat transfer plate having a first surface which has a first portion on which the substrate is arranged in a state where the first surface faces a bottom surface of the substrate and a second portion on which the substrate is not arranged; and a coupling member configured to couple the first pedestal portion and the second pedestal portion with the second portion of the heat transfer plate.