Open Access16QAM Vector Millimeter-Wave Signal Generation Based on Phase Modulator With Photonic Frequency Doubling and Precoding
Author(s) -
Lun Zhao,
Jianguo Yu,
Lei Chen,
Ping Min,
JiaHeng Li,
Renfan Wang
Publication year - 2016
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2016.2520821
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
In this paper, we experimentally demonstrate a method to generate a frequency-doubling photonic 16-quadrature-amplitude-modulation (16QAM) vector millimeter-wave (mm-wave) signal by using a single phase modulator (PM) with an amplitude and phase precoding technique. The PM is driven by a 2-Gbaud 16QAM-modulated precoded vector signal at 20 GHz. We transmit the generated optical radio-frequency (RF) signal at 40 GHz over 22-km single-mode fiber, and after heterodyne beating in a single-ended photodiode, a 40-GHz electrical vector mm-wave signal displaying regular 16QAM modulation can be generated with a bit error ratio (BER) of less than the hard-decision forward error correction (HD-FEC) threshold of 3.8 × 10-3. To our knowledge, this is the first time that high-order QAM vector mm-wave signal generation based on a single has been demonstrated.