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AssigneeNippon Telegraph and Telephone Corporation
InventorsKana MASUMOTO, Takeshi SEKI, Toshiya Matsuda
Estimating the term…
An optical transmission system (300) includes a reconfigurable optical add-drop multiplexer (ROADM) device (200) that transmits and receives an optical signal via an optical transmission line (10, 20), and a communication device (400) connected to the ROADM device (200) via the optical transmission line (10, 20). The ROADM device (200) includes an SFP for OSC (250) that converts an electrical signal and an optical signal to each other, and transmits and receives the optical signal via the optical transmission line (10, 20). The communication device (400) includes a response unit (420) that returns back to the ROADM device (200) the optical signal transmitted from the ROADM device (200).
An optical transmission system comprising:
A transmission method of an optical transmission system including an optical transmission device transmits an optical signal via an optical transmission line, and a communication device connected to the optical transmission device via the optical transmission line, the transmission method comprising steps of:
A communication device comprising:
Dependencies are inferred from the claim text.