The DL-CS6107A from DenseLight Semiconductors is a Superluminescent Diode with Wavelength 1580 to 1620 nm, Output Power 8 to 10 mW, Bandwidth (FWHM) 55 to 60 nm, Forward Voltage 2 V, Forward Current 350 mA. More details for DL-CS6107A can be seen below.