The Erbius-SF-15xxM from Optromix is a Laser with Power 20 to 1000 W, Wavelength 1550 to 1560 nm, Output Power (CW) 20 to 1000 W, Operating Temperature 10 to 50 Degree C, Storage Temperature 40 to 70 Degree C. More details for Erbius-SF-15xxM can be seen below.