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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 3 — Feb. 1, 2012
  • pp: 344–354

Analysis of Simultaneous Photonic Frequency Downconversion and Optical Subcarrier Modulation in an Electroabsorption Modulator

Ran Zhu, Bouchaib Hraimel, and Xiupu Zhang

Journal of Lightwave Technology, Vol. 30, Issue 3, pp. 344-354 (2012)


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Abstract

We present theoretical analysis of simultaneous photonic frequency downconversion, based on four-wave mixing (FWM), and optical subcarrier modulation in an electroabsorption modulator (EAM) for broadband millimeter wave (mm-wave) over fiber uplinks. A model of FWM generation in an EAM is established. The FWM efficiency with an EAM at dc bias with and without RF modulation is analyzed, including the impact of bias voltage, modulation voltage, and frequency detuning. The calculated FWM efficiency agrees well with the measured. The signal-to-noise ratio (SNR) of photonic frequency downconverted RF signal is also analyzed, considering the nonlinear distortion due to the EAM nonlinearities. Moreover, calculated error vector magnitude using theoretical SNR is compared with the measured for multiband orthogonal frequency division multiplexing ultrawideband mm-wave signals.

© 2011 IEEE

Citation
Ran Zhu, Bouchaib Hraimel, and Xiupu Zhang, "Analysis of Simultaneous Photonic Frequency Downconversion and Optical Subcarrier Modulation in an Electroabsorption Modulator," J. Lightwave Technol. 30, 344-354 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-3-344

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