Wavelength Remodulation by Optical Frequency-Shift Keying in WDM-PON

Abstract

In this letter, we propose and experimentally demonstrate a novel data remodulation on downstream OFSK signals for upstream transmission in WDM-PONs. The OFSK transmitter generates constant-intensity wavelength shift keying signals based on phase modulation and polarization modulation. We successfully demonstrate the proposed WDM-PONs with 2.5Gb/s downstream OFSK signals and 2.5Gb/s upstream ASK signals. Keywords-remodulation; WDM-PON; optical frequency shift keying; polarization modulation.