Optical transmission system for communication with optical fiber amplifiers and test device of the transmission paths.

摘要

TRANSMISSION SYSTEMS FOR OPTICAL INFORMATION THROUGH FIBER OPTIC CONDUCTOR IN CASE OF TROUBLE FOR EXAMPLE, fiber breakage, entirely, or partially disconnected. FOR FINDING THE TROUBLE AND FOR VERIFYING communication circuits before a new startup, AS WELL AS BEFORE A FIRST COMMISSIONING THE SYSTEM IS USED IN ACCORDANCE WITH invention, the optical fiber amplifiers (OA) as light sources TEST AND EXISTING SYSTEM.