I would like to monitor fast pulsed lasers on a PC. The pulse widths are as small as 5 ns and the repetition rate is up to 500 kHz. I am considering a photodetector without amplification, with the followings specs:
Rise Time: 1 ns
NEP (W/vHz): 1.9 x 10-14
Dark Current: 0.3 nA (2 nA Max)
Junction Capacitance: 6 pF
I think it should be necesary to detect mV's and to have about 50 Ohms impedance, but not that sure.
Could the picoseries offer any solution for easy monitoring on a PC?