Graphical Approach for Evaluating Performance Limitations in Externally Modulated Analog Photonic Links

ArticleinIEEE Transactions on Microwave Theory and Techniques 56(1):242 - 247 · February 2008with33 Reads
DOI: 10.1109/TMTT.2007.912224 · Source: IEEE Xplore
We present a novel graphical approach for evaluating the performance of analog photonic links employing an external intensity modulator biased at quadrature. A single graph is sufficient to grasp the engineering tradeoffs among noise figure, third-order spurious-free dynamic range, and RF gain for various values of half-wave voltage and dc photocurrent.
    • "Here, the important effects of RIN are taken into account and analysis of (6) is also included. Although RF gain contours were included in [6], they are excluded here as the gain is easily determined by (1). Figs. 2 and 3 are plotted for R i = R o = 50 Ω and B = 1 Hz. "
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