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Optical Engineering

Dual-tone optical vector millimeter wave signal generated by frequency-nonupling the radio frequency 16-star quadrature-amplitude-modulation signal
Author(s): Tonggen Wu; Jianxin Ma
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Paper Abstract

This paper proposes an original scheme to generate the photonic dual-tone optical millimeter wave (MMW) carrying the 16-star quadrature-amplitude-modulation (QAM) signal via an optical phase modulator (PM) and an interleaver with adaptive photonic frequency-nonupling without phase precoding. To enable the generated optical vector MMW signal to resist the power fading effect caused by the fiber chromatic dispersion, the modulated 5 th - and + 4 th -order sidebands are selected from the output of the PM, which is driven by the precoding 16-star QAM signal. The modulation index of the PM is optimized to gain the maximum opto-electrical conversion efficiency. A radio over fiber link is built by simulation, and the simulated constellations and the bit error rate graph demonstrate that the frequency-nonupling 16-star QAM MMW signal has good transmission performance. The simulation results agree well with our theoretical results.

Paper Details

Date Published: 5 December 2017
PDF: 7 pages
Opt. Eng. 56(12) 126102 doi: 10.1117/1.OE.56.12.126102
Published in: Optical Engineering Volume 56, Issue 12
Show Author Affiliations
Tonggen Wu, Beijing Univ. of Posts and Telecommunications (China)
Jianxin Ma, Beijing Univ. of Posts and Telecommunications (China)

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