The N7711A from Keysight Technologies is a Laser with Wavelength 1527.6 to 1570 nm, Power 13.5 to 15 dBm, Output Power (CW) 13.5 to 15 dBm, Operating Temperature 10 to 35 Degree C, Storage Temperature -40 to 70 Degree C. More details for N7711A can be seen below.