Bidirectional submarine repeater using unidirectional amplification

摘要

A bidirectional submarine transmission using unidirectional amplification transmits first and second communication signals bidirectional to each other over a repeater path with common end-to-end points, the repeater path includes a single unidirectional amplifier, the repeater path has a first branch path for the first communication signal through the single amplifier and a second branch path for the second communication signal through the single unidirectional amplifier, the first and second communication signals originating and leaving opposite ends of the repeater path, respectively.

主权项

1. A method for bidirectional submarine transmission using unidirectional amplification, comprising the steps of:
transmitting first and second communication signals bidirectional to each other over a repeater path with common end-to-end points, the repeater path including a single amplifier with unidirectional amplification; configuring the repeater path with a first branch path for the first communication signal through the unidirectional amplifier in the direction of the single amplification; and configuring the repeater path with a second branch path for the second communication signal through the single amplifier in the direction of the unidirectional amplification, the first and second communication signals originating and leaving opposite ends of the repeater path, respectively; providing bidirectional transmission using unidirectional amplification with four C- band and L-band (C/L) optical couplers; and processing in-band signals by using wavelength interleaving where the signals are split into even and odd traffic groups.