Radio-over-Fiber Transmission Supporting 65536-QAM at 25GHz Band with High-Pass Delta-Sigma Modulation and RF fading Mitigation
Yixiao Zhu, Xiansong Fang, Longjie Yin, Fan Zhang, Weisheng Hu
Abstract
We experimentally demonstrate radio-over-fiber transmission of 44.4Gb/s 65536-QAM at 25GHz employing 2-bit high-pass delta-sigma modulation. 0.19% EVM is achieved after 10km C-band SSMF transmission, and dispersion-induced RF fading is mitigated by differential skew-enabled spectral shaping.
Topics & Concepts
FadingQuadrature amplitude modulationQAMModulation (music)Transmission (telecommunications)SkewElectronic engineeringRadio over fiberAnalog transmissionOpticsPhysicsTelecommunicationsBit error rateComputer scienceEngineeringChannel (broadcasting)AcousticsAnalog signalAdvanced Photonic Communication SystemsOptical Network TechnologiesPhotonic and Optical Devices