Patent ID: 11888528
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The optical communication system according to claim 8,
wherein the transmitter includes a second-order nonlinear optical element configured to generate a second harmonic light from a portion of the single light source light, and a second-order nonlinear optical element configured to generate a corresponding phase-conjugated light from the modulated signal light, and
the optical phase-sensitive amplifier includes a second-order nonlinear optical element configured to generate a second harmonic light from the synchronized light generated by the light phase synchronization mechanism, a second-order nonlinear optical element configured to perform non-degenerate parametric amplification of the transmitted WDM signal, and a means for synchronizing the phases of the transmitted WDM signal and the synchronized light.