The SLD1023S from Thorlabs Inc is a Superluminescent Diode with Wavelength 1270 to 1290 nm, Output Power 10 to 15 mW, Bandwidth (FWHM) 40 to 45 nm, Operating Current 600 to 800 mA, Forward Voltage 1.4 to 2 V. More details for SLD1023S can be seen below.