Title :
Quantifying current-dependant quantum efficiency photodiode nonlinearities
Author :
Hastings, Alexander S. ; Draa, Meredith ; Williams, Keith
Author_Institution :
Photonics Technol. Branch, Naval Res. Lab., Washington, DC, USA
Abstract :
Nonlinearities in the RF output of a p-i-n photodiode are attributed to photocurrent-dependent changes in the photodiode quantum efficiency (responsivity). Physical causes of the current dependence are discussed, and a mathematical model for calculating the resulting distortion power is presented. Photodiode responsivity is measured and used to calculate distortion, which is then compared to measured nonlinearity data.
Keywords :
p-i-n photodiodes; photoconductivity; RF output; current-dependant quantum efficiency photodiode nonlinearities; distortion power; mathematical model; p-i-n photodiode; photocurrent-dependent changes; photodiode responsivity; Distortion measurement; Harmonic distortion; Optical distortion; Photoconductivity; Photodiodes; Polynomials; Taylor series; distortion; nonlinearity; photocurrent; photodiode;
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088759
