Fast Evaluation of RF Power Spectrum of Photodetectors With Windowing Functions

Time window functions are used as broadband excitations to obtain the output power spectrum of photodetectors. Numerical results show a good agreement with experimental results. The proposed method yields a two-orders-of-magnitude reduction in computing time and memory compared to traditional monoch...

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Bibliographic Details
Published inIEEE transactions on electron devices Vol. 70; no. 7; pp. 1 - 6
Main Authors Simsek, Ergun, Anjum, Ishraq Md, Carruthers, Thomas F., Menyuk, Curtis R., Campbell, Joe C., Tulchinsky, David A., Williams, Keith J.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bandwidth
Broadband
Broadband communication
Charge carrier processes
Computing time
Design optimization
Drift-diffusion equations
Frequency modulation
Mathematical models
Personal computers
Photodetectors
photodiodes
Photometers
Radio frequency
Reduction
Window functions
Windows (intervals)
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Summary:Time window functions are used as broadband excitations to obtain the output power spectrum of photodetectors. Numerical results show a good agreement with experimental results. The proposed method yields a two-orders-of-magnitude reduction in computing time and memory compared to traditional monochromatic calculations. This large reduction makes it possible to design high-performance photodetectors with numerical optimization on desktop computers. We use this approach to design a device whose 3-dB bandwidth is four times larger than the initial design.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2023.3275553