32 Keysight DFB Laser Source Module User’s Guide3 Performance TestsTest RecordsPerformance Test for the Keysight 81663APage 1 of 4 Date ___________Model Keysight 81663A DFB Laser Source module (_____.__ nm)Serial No. _________________________ Ambient Temperature ___________°COptions _________________________ Relative Humidity ___________ %Firmware Rev. _________________________ Line Frequency ___________ HzTest Facility _________________________ Customer _________________________Performed by _________________________ Report No _________________________Special Notes ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________