Gain Limit in Analog Links Using Electroabsorption Modulators

  title={Gain Limit in Analog Links Using Electroabsorption Modulators},
  author={G W Betts and X. B. Xie and Ivan Shubin and W. S. C. Chang and P. K. L. Yu},
  journal={IEEE Photonics Technology Letters},
Analog optical links using electroabsorption modulators have a gain limit caused by the photocurrent in the modulator. The gain limit results in a minimum link noise figure as well. The gain limit is due to the voltage-dependent absorption causing a voltage-dependent component to the photocurrent; the gain limit applies to a modulator that has this relationship 
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