Patent ID: 6533464
Filing Date: 2003-03-18
Classification: G02B

Abstract:
A connection unit provided between a plurality of first optical fibers extending from an optical amplifier and a plurality of second optical fibers in an optical cable, comprising not less than one optical component to connect one first optical fiber selected from the plurality of first optical fibers to one second optical fiber selected from the plurality of second optical fibers, whereineach of said optical components comprises a third optical fiber that can be connected to the selected first optical fiber with a low connection loss, a fourth optical fiber that can be connected to the selected second optical fiber with a low connection loss, and a loss adjusting section for adjusting a transmission loss of an optical transmission line including the selected first and second optical fibers, said connection unit adjusts a difference between a highest transmission loss and a lowest transmission loss among transmission losses in a plurality of optical transmission lines each including one of the plurality of first optical fibers and one of the plurality of second optical fibers to not more than 0.005 dB/km.