8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
131
Measurement Operations & Settings
4
command:
[:SOURce[
n
]][:CHANnel[
m
]]:FM:SBSCtrl:FREQuency[
l
]
syntax:
[:SOURce[
n
]][:CHANnel[
m
]]:FM:SBSCtrl:FREQuency[
l
]<wsp><frequency>
[MHZ|KHZ|HZ|MIN|MAX|DEF]
description:
Sets the frequency of the SBS Control modulation.
Enable frequency modulation before issuing this command.
Refer to
[:SOURce[n]][:CHANnel[m]]:FM:SOURce[l]
on page 129 and
[:SOURce[n]][:CHANnel[m]]:FM:STATe[l]
parameters:
The modulation frequency as a
float
value.
The default units are HZ, although KHZ, MHZ, GHZ and THZ can also be specified.
Also allowed are:
MIN: minimum programmable value
MAX: maximum programmable value
DEF: default preset (*RST) value.
response:
none
example:
sour2:fm:sbsc:freq 4000Hz
affects:
Keysight 81960A, 81980A, 81940A, 81989A, 81949A compact tunable lasers.
command:
[:SOURce[
n
]][:CHANnel[
m
]]:FM:SBSCtrl:FREQuency[
l
]?
syntax:
[:SOURce[
n
]][:CHANnel[
m
]]:FM:SBSCtrl:FREQuency[
l
]?<wsp>[MIN|MAX|DEF]
description:
Queries the currently set frequency of the SBS Control modulation.
parameters:
Optional
MIN: returns the minimum programmable value
MAX: returns the maximum programmable value
DEF: returns the default preset (*RST) value.
response:
The modulation frequency in Hz as a
float
value
example:
sour2:fm:freq?
->
+4.03
<END>
affects:
Keysight 81960A, 81980A, 81940A, 81989A, 81949A compact tunable lasers.
command:
[:SOURce[
n
]][:CHANnel[
m
]]:FM:SBSCtrl:LEVel[
l
]
syntax:
[:SOURce[
n
]][:CHANnel[
m
]]:FM:SBSCtrl:LEVel[
l
]<wsp>[MIN|MAX|DEF]
description:
Sets the excursion of the SBS Control frequency modulation to a percentage of its maximum value.