The FSLD-830-40 from Frankfurt Laser Company is a Superluminescent Diode with Wavelength 790 to 860 nm, Output Power 40 mW, Bandwidth (FWHM) 13 to 18 nm(Spectral Width), Forward Voltage 2.8 V, Forward Current 220 to 300 mA. More details for FSLD-830-40 can be seen below.