The SLD-26-HP from Superlum is a Superluminescent Diode with Wavelength 660 to 680 nm, Output Power 4 to 15 mW, Bandwidth (FWHM) 6 to 7 nm(Spectral Width), Forward Voltage 2.6 V, Forward Current 200 to 220 mA. More details for SLD-26-HP can be seen below.