The FD80 Series from Fermionics Opto-Technology is a Photodiode with Wavelength Range 1300 to 1550 nm, Capacitance 0.4 to 0.75 pF, Dark Current 0.1 to 1 nA, Responsivity/Photosensitivity 0.8 to 0.90 A/W, Rise Time 0.5 to 0.15 ns. More details for FD80 Series can be seen below.