OPTICAL SIGNAL PROCESSING DEVICE, RECEIVER, AND OPTICAL NETWORK SYSTEM

摘要

Signal light propagating along an optical network is modulated with control light having information relating to the optical network without photoelectric conversion, and a power loss is thereby suppressed. An optical modulator (1) synthesizes the signal light (ES) propagating along the optical network with the control light (ECt) having the information relating to the optical network, and inputs the synthesized signal to a non-liner optical medium. The optical modulator (1) modulates the signal light (ES) with changes in intensity of the control light (ECt) in the non-liner optical medium.