The IPSDD1601 from InPhenix is a Superluminescent Diode with Wavelength 1590 to 1630 nm, Output Power 1 to 2 mW, Bandwidth (FWHM) 45 to 55 nm, Forward Current 350 mA(Max Current), Operating Current 250 to 300 mA. More details for IPSDD1601 can be seen below.