Spliced portion housing structure for optical fiber in optical submerged

Abstract

A spliced portion housing structure for an optical fiber in an optical submerged repeater, characterized in that, in order to splice together in a joint ring an optical fiber and a power-supplying feeder from the optical submerged repeater to an optical fiber and a power-supplying feeder of a tail cable from a cable coupling of an optical submarine cable, respectively, a joint chamber is provided on an end plate of a housing of the optical submerged repeater in such a manner that the end plate forms a part of the joint chamber; the optical fiber and the power-supplying feeder from the submerged repeater are introduced into the joint chamber through a first feedthrough provided in the end plate for hermetically introducing the optical fiber and the power-supplying feeder; the tail cable from the cable coupling is hermetically introduced into the joint chamber through a second feedthrough provided in the wall of the joint chamber so that the tail cable is insulated from the joint chamber, the optical fibers and the feeders pulled into the joint chamber from both of the first and second feedthroughs are respectively spliced together while being isolated from each other and housed in the joint chamber; the optical fiber spliced portion is fixed to a cage mounted in the joint chamber; and the joint chamber is formed to have a water pressure resisting and airtight structure.