The 81989A from Keysight Technologies is a Laser with Wavelength 1465 to 1575 nm, Power 10 to 14.5 dBm, Output Power (CW) 10 to 14.5 dBm, Operating Temperature 10 to 35 Degree C, Storage Temperature -40 to 70 Degree C. More details for 81989A can be seen below.