Signal Generation The SOURce Subsystem Measurement Operations & Settings
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition 121
command: [:SOURce[ n]][:CHANnel[m]]:FM:SBSCtrl:Level[l]?
syntax: [:SOURce[n]][:CHANnel[m]]:FM:SBSCtrl:LEVel[l]?<wsp>[MIN|MAX|DEF]
description: Queries the currently set excursion level of the SB S Control frequency modulation.
parameters: Optional MIN: returns the minimum programmab le value (0%)
MAX: returns the maximum programma ble value (100%)
DEF: returns the default preset (*RST) value.
response: Returns the currently set excursion l evel as a percentage of its maxim um value.
example: sour2:fm:sbsc:lev? +8.000E+01<END>
affects: Agilent 81980A, 81940A, 81989A, 81949A compact tunable lasers.
command: [:SOURce[n]][:CHANnel[m]]:MODout
syntax: [:SOURce[n]][:CHANnel[m]]:MODout<wsp>FRQ|FRQRDY|0|1
description: Sets the modulation output mode of the BNC connector on the front panel of tunable laser
modules.
parameters: FRQ or 0:
FRQRDY or 1:
modulation signal is output a ll the time
modulation is combined with the las er-ready signal.
In this case, the output is kept low when no optical signal is ou tput (for
example, while the laser is settling aft er a change of wavelength).
response: none
example: sour0:mod 0
affects: All tunable laser sources with BNC ouput connector.
command: [:SOURce[n]][:CHANnel[m]]:MODout?
syntax: [:SOURce[n]][:CHANnel[m]]:MODout?
description: Queries the modulation output mode of the BNC connector on the front panel of tunable la-
ser modules.
parameters: none
response: 0:
1:
modulation signal is outpu t all the time
modulation is combined with the laser-ready signal.
In this case, the output is kept low when no optical signal is outp ut (for example, while
the laser is settling after a change of wavelength).
example: sour0:mod? 0<END>
affects: All tunable laser sources with BNC output connector.