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A New Scheme to Generate Frequency 12-tupling Millimeter Wave Signals Only Based on Cascaded Three MZMs

Author

Listed:
  • Dongfei Wang

    (School of Artificial Intelligence, Wuhan Technology and Business University, Wuhan 430065, China
    School of Information Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China)

  • Xueyao Yan

    (School of Information Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China)

  • Zufang Yang

    (School of Artificial Intelligence, Wuhan Technology and Business University, Wuhan 430065, China)

  • Xiangqing Wang

    (School of Artificial Intelligence, Wuhan Technology and Business University, Wuhan 430065, China)

  • Xiaokun Yang

    (School of Artificial Intelligence, Wuhan Technology and Business University, Wuhan 430065, China)

Abstract
In the proposed scheme, only three Mach–Zehnder modulators (MZMs) in cascaded mode are employed to generate a frequency 12-tupling millimeter wave (mm-wave) signal. In order to eventually get the frequency 12-tupling mm-wave signal, it is necessary to generate ±6th order harmonics. Therefore, the next work is to generate pure ±6th order optical sidebands to obtain a high-quality frequency 12-tupling signal. First of all, by adjusting the MZM bias voltage at peak point to suppress odd order sidebands; then, by controlling the phase differences to cancel even order sidebands except for the (6n)th order; lastly, by setting the modulation index to eliminate the 0th order optical carrier. Based on the above, the pure ±6th order optical harmonics are obtained. Moreover, the feasibility of the scheme has been demonstrated through a simulation. The optical sideband suppression ratio (OSSR) and radio frequency spurious suppression ratio (RFSSR) of the generated signal are 59.45 dB and 44.44 dB, respectively. In the end, the non-ideal factors that will affect the signal quality are also analyzed.

Suggested Citation

  • Dongfei Wang & Xueyao Yan & Zufang Yang & Xiangqing Wang & Xiaokun Yang, 2024. "A New Scheme to Generate Frequency 12-tupling Millimeter Wave Signals Only Based on Cascaded Three MZMs," Mathematics, MDPI, vol. 12(23), pages 1-10, November.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:23:p:3759-:d:1532421
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