Hi all, I am not very interrested in topic for some time, but I have few fast, suitable for 100Mbps, photodiodes. I planned some design with it, but now I offer it for experiments to you. It's FCI-HR008 (http://www.datasheetarchive.com/pdf/1382205.pdf). It has capacitance 0.8pF at 5V! Price: 1 000CZK (40€) per piece. DS