hide
Free keywords:
PHASE NOISE; REGENERATION; NOLM; TRANSMISSION; SYSTEMSEngineering; Optics; Physics; 2R-regeneration; all-optical regeneration; differential phase-shift
keying (DPSK); nonlinear amplifying loop mirror (NALM);
Abstract:
The performance of a nonlinear amplifying loop mirror as a 2R-regenerator for return-to-zero differential-phase-shift-keyed signals has been investigated experimentally. The measured power characteristics and phase functions show that the signal amplitude is regenerated while the signal phase is preserved in the setup. A significant eye-opening improvement and a negative power penalty of about 1.5 dB were obtained.