The FSLD-1055-40 from Frankfurt Laser Company is a Superluminescent Diode with Wavelength 1040 to 1070 nm, Output Power 35 to 40 mW, Bandwidth (FWHM) 60 to 70 nm(Spectral Width), Forward Voltage 2.2 V, Forward Current 260 to 330 mA. More details for FSLD-1055-40 can be seen below.