The EP1742-DM-B from Eblana Photonics is a Laser Diode with Wavelength 1735 nm, 1742.2 nm, 1770 nm, Output Power 3 to 5 mW, Output Power 3 to 5 mW, Threshold Current 20 to 25 mA, Operating Current 120 mA. More details for EP1742-DM-B can be seen below.