The FSLD-860-025 from Frankfurt Laser Company is a Superluminescent Diode with Wavelength 850 to 870 nm, Output Power 2 to 2.5 mW, Bandwidth (FWHM) 55 to 60 nm(Spectral Width), Forward Voltage 2.8 V, Forward Current 170 to 200 mA. More details for FSLD-860-025 can be seen below.