Title :
Graphical Approach for Evaluating Performance Limitations in Externally Modulated Analog Photonic Links
Author :
Bucholtz, Frank ; Urick, Vincent J. ; Godinez, Modesto ; Williams, Keith J.
Author_Institution :
Naval Res. Lab., Washington
Abstract :
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.
Keywords :
Mach-Zehnder interferometers; electro-optical modulation; graph theory; intensity modulation; microwave photonics; optical fibre communication; optical links; DC photocurrent values; Mach-Zehnder modulators; RF gain; external intensity modulator; externally modulated analog photonic links; graphical approach; half-wave voltage values; microwave photonics; noise figure; quadrature bias; third-order spurious-free dynamic range; Dynamic range; Equations; Impedance; Intensity modulation; Noise measurement; Optical modulation; Photoconductivity; Photodetectors; Radio frequency; Voltage; Analog photonics; microwave photonics; photonic links;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2007.912224
