Optical signal division transmission system, optical transmitter, optical receiver, and optical signal division transmission method

摘要

An optical signal division transmission system in which an input optical signal is divided into N parts (termed as N-part optical signals) and transmitted at a transmission rate of 1/N, wherein an additional optical wave path is provided separately from an optical wave paths for transmitting said N-part optical signals, and even if a malfunction occurs in any one of said optical wave paths for transmitting said N-part optical signals, transmission of said N-part optical signals is continued, using said additional optical wave path.