The QSM-1550-3 from QPhotonics is a Laser Diode with Wavelength 1530 to 1570 nm, Output Power 0.003 to 0.0033 W, Output Power (CW) 0.003 to 0.0033 W, Threshold Current 600 mA, Operating Current 12 to 13 A. More details for QSM-1550-3 can be seen below.