Back to Search Start Over

Flexible photonic generation of frequency multiplication millimeter-wave vector signal based on dynamic pre-coding algorithm with dispersion compensation

Authors :
Yongjun Wang
Xiangjun Xin
Li Bowen
Qi Zhang
Lijia Zhang
Feng Tian
Qinghua Tian
Wei Zhang
Naijin Liu
Xiaolong Pan
Ying Tao
Source :
Optics Communications. 435:232-238
Publication Year :
2019
Publisher :
Elsevier BV, 2019.

Abstract

The flexible photonic generation of millimeter-wave (mm-wave) vector signal adopting frequency multiplication enabled by two paralleled phase modulators and pre-coded radio frequency (RF) signals based on dynamic pre-coding algorithm is proposed and demonstrated. One driving signal has the original phase information and a phase deviation for dispersion compensation while the other signal has an opposite phase information and the same compensation phase. The amplitude depends on that of the regular vector symbol and the ratio of driving voltage to half-wave voltage of the phase modulator (PM). Two RF signals modulate the identical light waves from one laser via phase modulators respectively. The light waves are then transmitted over a fiber link after the selection of proper orders of harmonics by the wavelength selective switch (WSS). At the receiver, the optical signal is applied directly to a photodetector (PD) to generate the mm-wave vector signal at the desired frequency. The simulation of proposed scheme with radio over fiber (RoF) link transmission has been build. The result shows that the error vector magnitude (EVM) of generated 60 GHz, 100 GHz, and 140 GHz 16 quadrature-amplitude-modulation (QAM) signals of 1 Gb/s is no more than 20% after 80 km fiber transmission when the power into PD is no less than −10 dBm under ideal condition.

Details

ISSN :
00304018
Volume :
435
Database :
OpenAIRE
Journal :
Optics Communications
Accession number :
edsair.doi...........0587e13bf748eb727936fa6f5c87a813