Keysight Technologies 8163A/B - Page 129

8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide 129
Measurement Operations & Settings 4
parameters: Optional MIN: returns the minimum programmable value (0%)
MAX: returns the maximum programmable value (100%)
DEF: returns the default preset (*RST) value.
response: Returns the currently set excursion level as a percentage between 0 and 99.98
example: source2:am:cohc? -> 50<END>
affects: DFB sources and Keysight 81960A, 81980A, 81940A, 81989A, 81949A
command: [:SOURce[n]][:CHANnel[m]]:FM:SOURce[l]
syntax: [:SOURce[n]][:CHANnel[m]]:FM:SOURce[l]<wsp>SBSCtrl|0
description: Selects the type of the frequency modulation of the laser output.
Currently, only parameter strings that select SBS Control are valid.
Enable frequency modulation before issuing this command.
Refer to [:SOURce[n]][:CHANnel[m]]:FM:STATe[l] on page 130.
parameters: 0, SBSCtrl Stimulated Brillouin Scattering
SBSCtrl (Stimulated Brillouin Scattering) Control modulation suppresses SBS effects within high-power measurement
setups.
response: none
example: sour2:fm:sour SBSC
affects: Keysight 81960A, 81980A, 81940A, 81989A, 81949A compact tunable lasers.
command: [:SOURce[n]][:CHANnel[m]]:FM:SOURce[l]?
syntax: [:SOURce[n]][:CHANnel[m]]:FM:SOURce[l]?
description: Queries the type of frequency modulation currently set.
Currently, only SBS Control is available.
parameters: none
response: 0 SBS Control
example: sour2:fm:sour?
-> +0<END>
affects: Keysight 81960A, 81980A, 81940A, 81989A, 81949A compact tunable lasers.