Dark current or shot noise IN(SHOT) is normally given by IN(SHOT). So, it is seemed to be stable more than other APD structures and recommended to be used in warm environments and for high temperature applications. Present across region A is an electric field E that. Also, the temperature has a slight effect on the performance of APD (GaAs). Further, it was observed that the APD (InGaAs) provides performance better than other APD structures in terms of larger SNR and less BER at higher temperature levels. It was found that the experimental measured results endorse the analytical computed results. Recall that dark current refers to counts (electrons) generated in a pixel because an electron in the pixel happens to have enough energy to break free and register as a count. The analysis of the proposed model is performed by MATLAB. The aim of this paper is to determine the most efficient avalanche photodiode achieving the best performance according to the maximum SNR and minimum BER at high temperature environments. An additional factor that should be considered is that the values of incident and background photon flux. The CCD signal-to-noise ratio calculation in the tutorial uses the following equation: SNR PQ e t / PQ e t + Dt + N r2 1/2. The signal to noise ratio (SNR) and Bit Error Rate (BER) of these APDs are also computed and measured under the influences of different temperature levels and spectral variations. High-performance camera systems utilize design enhancements that greatly reduce the significance of read noise. The impacts of different temperature levels on the band gap energy, detector responsivity, noise equivalent power (NEP), cut-off wavelength, dark current and the photocurrent are studied and analyzed in details. The characteristics and performance of Silicon (Si), Gallium Arsenide (GaAs) and Indium Gallium Arsenide (InGaAs) avalanche photodiodes have been evaluated under effects of different temperature degrees. In this paper, the influences of thermal and spectral variations on various structures of avalanche photodiodes (APDs) have been deeply investigated.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |