The FD100 Series from Fermionics Opto-Technology is a Photodiode with Wavelength Range 1300 to 1550 nm, Capacitance 1.1 to 1.5 pF, Dark Current 0.5 to 3 nA, Responsivity/Photosensitivity 0.8 to 0.90 A/W, Rise Time 0.3 to 0.7 ns. More details for FD100 Series can be seen below.