The 81950A from Keysight Technologies is a Laser with Power 11.5 to 15 dBm, Wavelength 1527.60 to 1611.76 nm, Output Power (CW) 11.5 to 15 dBm, Operating Temperature 10 to 35 Degree C, Storage Temperature -40 to 70 Degree C. More details for 81950A can be seen below.