PROJECT TITLE :

W-Band 8QAM Vector Signal Generation by MZM-Based Photonic Frequency Octupling

ABSTRACT:

We have a tendency to propose a completely unique theme for photonic multiamplitude quadrature-amplitude-modulation (QAM) vector signal generation at microwave/millimeter-wave bands enabled by Mach-Zehnder modulator (MZM)-primarily based adaptive photonic frequency multiplication. In order to realize an electrical millimeter-wave vector signal displaying multiamplitude QAM modulation, like 8QAM, once square-law photodiode detection, the driving radio-frequency (RF) signal, carrying multiamplitude QAM transmitter data, ought to be each amplitude- and section-precoded before used to drive the MZM. We have a tendency to experimentally demonstrate 8QAM vector signal generation at W-band adopting photonic frequency octupling (x8) enabled by our proposed scheme. The MZM is driven by a twelve-GHz precoded RF signal carrying one-GBaud 8QAM transmitter knowledge. The generated 1-GBaud 8QAM vector signal at W-band is air transmitted over a pair of-m distance. To the best of our information, it's the first time to comprehend the generation and reception of multiamplitude QAM vector signal by one external modulator at W-band.