Patent ID: 6804469
Filing Date: 2004-10-12
Classification: H04B

Abstract:
A supervisory system of the optical amplifier repeater system in an optical transmission system including two terminal stations and at least one optical amplifier repeater connected between the two terminal stations through an optical fiber, said supervisory system of the optical amplifier repeater system comprising:an optical transmitter installed in at least one of said two terminal stations for transmitting to said optical amplifier repeater an optical signal including an operation command to notify of a state of a predetermined supervisory target; a response signal generator installed in said optical amplifier repeater for receiving the optical signal transmitted from said optical transmitter, and for generating a response optical signal including a response code indicative of the state of the supervisory target; an optical receiver installed in at least one of said two terminal stations for receiving the response optical signal transmitted from said optical amplifier repeater; and an information processing unit connected to said optical receiver for generating a numerical form of the response code included in the response optical signal received by said optical receiver by using a predetermined expression that links the response code with measured information obtained by measuring in advance the supervisory target with an external measuring device during operation of said optical amplifier repeater in response to the operation command.