Microwave transmission-line theory has been applied to calculate p-i-n
photodiode systems in which the carrier transit time, the geometric c
onfiguration, and the transmission-line characteristics were considere
d. The thickness of the intrinsic layer has been optimized to obtain a
wide 3-dB bandwidth and a maximum gain-bandwidth product. A simulated
result of 40-GHz bandwidth has been obtained for a device with a 20 x
20 mum2 p-i-n area. (C) 1995 John Wiley & Sons, Inc.