M. Selim Ünlü, Ekmel Özbay, Elias Towe, Richard P. Mirin, and David H. Christensen
An important figure of merit for photodetectors used in optical communications is the bandwidth-efficiency (BWE) product. The quantum efficiency of conventional detector structures is governed by the absorption coefficient of the semiconductor material, meaning that thick active regions are required for high quantum efficiencies.
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