Fast Evaluation of RF Power Spectrum of Photodetectors With Windowing Functions
Ergün Şimşek, Ishraq Md Anjum, Thomas F. Carruthers, Curtis R. Menyuk, Joe C. Campbell, D.A. Tulchinsky, Keith J. Williams
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.
Topics & Concepts
PhotodetectorMonochromatic colorBandwidth (computing)BroadbandReduction (mathematics)Computer scienceElectronic engineeringPower (physics)DetectorOpticsPhysicsMathematicsEngineeringTelecommunicationsGeometryQuantum mechanicsPhotonic and Optical DevicesSemiconductor Lasers and Optical DevicesNeural Networks and Reservoir Computing