Linearity of InGaAs Photodiodes

  title={Linearity of InGaAs Photodiodes},
  author={Howard W. Yoon and James J. Butler and Thomas C. Larason and George P. Eppeldauer},
In radiometry or pyrometry, radiometers are often used to assign the spectral radiance or radiance temperatures of sources using ratios of signals which can differ by several decades. For performing ratios between such sources with low uncertainties, the linearity of the detectors used in the transfer radiometers needs to be characterized. The linearity of InGaAs photodiodes has been studied using the flux-addition method using a broadband infrared source with a visible-blocking filter. Using… 

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