The QDFBLD-1600-20 from QPhotonics is a Laser Diode with Wavelength 1598.9 nm, Output Power 0 to 0.0201 W, Output Power (CW) 0 to 0.0201 W, Threshold Current 11 mA, Operating Current 0.111 to 0.122 A. More details for QDFBLD-1600-20 can be seen below.