Open AccessOptimization of Precoding Phase Distribution for Frequency-Multiplication Vector Signal Generation
Author(s) -
Xinying Li
Publication year - 2017
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.2017.2709264
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
Generation of optical vector millimeter-wave (mm-wave) signal based on Mach-Zehnder intensity modulator with frequency multiplication can reduce bandwidth requirement of optical and electrical components. A phase precoding scheme with constellation optimization is experimentally demonstrated in one 144-GHz mm-wave signal generation system with frequency sextupling. The bit-error-ratio (BER) performance at one BER of 3.8 × 10-3, hard-decision forward-error-correction threshold, is improved by over 3 dB using this novel scheme for 4-Gbaud quadrature-phase-shift-keying signal at D-band (110-170 GHz).