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Calculation of the current response of the Spatially Modulated Light CMOS detector This publication appears in: IEEE Trans. Elec. Devs. Authors: J. Genoe, D. Coppée, J. Stiens, R. Vounckx and M. Kuijk Volume: 48 Issue: 9 Pages: 1892-1902 Publication Date: Sep. 2001
Abstract: We present an analytical model that allows to calculate the current response of a spatially modulated light CMOS detector (SML-detector) and compare this response with the response of a traditional CMOS photodetector. It is shown that the SML detector already yields a three orders of magnitude faster response time than a traditional CMOS detector in a 0.25 mum CMOS technology. This response time will further decrease as CM-OS technology evolves. This analytical expression is compared with a numerical solution of the diffusion equation and with experimental results. Both show an excellent correspondence. Therefore we can conclude that the SML-detector is the solution of choice for cheap, CMOS-compatible receivers in integrated opto-electronic systems
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