Fast Evaluation of RF Power Spectrum of Photodetectors With Windowing Functions
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Date
2023-05-22
Type of Work
Department
Program
Citation of Original Publication
E. Simsek et al., "Fast Evaluation of RF Power Spectrum of Photodetectors With Windowing Functions," in IEEE Transactions on Electron Devices, doi: 10.1109/TED.2023.3275553.
Rights
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Abstract
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.