High speed low power optical gate driver for 2.5 GBit/s ATM switching networks

In this paper an optical gates matrix driver suitable for 2.5 GBit/s ATM switching networks is described. It enables gate switching with typical current up to 150 mA in less than 200 ps. Circuit was realised using a 50 GHz baseline GaAs-GaAlAs heterojunction bipolar transistor (HBT) technology with low power and high speed concurrent objectives.