Fast Evaluation of RF Power Spectrum of Photodetectors With Windowing Functions

作者：Ergün Şimşek, Ishraq Md Anjum, Thomas F. Carruthers, Curtis R. Menyuk, Joe C. Campbell, D.A. Tulchinsky, Keith J. Williams · 发表于：IEEE Transactions on Electron Devices · 年份：2023 · DOI：10.1109/ted.2023.3275553 · 被引用次数：28 · 研究领域：Photonic and Optical Devices、Semiconductor Lasers and Optical Devices、Neural Networks and Reservoir Computing

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.