140 8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
4 Measurement Operations & Settings
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 laser modules.
parameters: none
response: 0
:
1
:
modulation signal is output all the time
modulation is combined with the laser-ready signal.
In this case, the output is kept low when no optical signal is output (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.
command: [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal[:STATe]
syntax: [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal[:STATe]<wsp>OFF|0|ON|1
description: Switches the internal modulation (SBS suppression) on or off.
parameters: OFF or 0: Disable the modulation
ON or 1: Enable the modulation
response: None
example: sour1:modu:int on
affects: 81950A
Notes SBSControl must be set to an appropriate value, too.
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