Agilent Technologies 8163A Programming Manual page 99

Signal Generation – The SOURce Subsystem
command:
syntax:
description:
NO TE
parameters:
response:
example:
affects:
command:
syntax:
description:
parameters:
response:
example:
affects:
command:
syntax:
description:
parameters:
response:
example:
affects:
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave Multichannel
System, Third Edition
[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation[l]?
[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation[l]?[MIN|DEF|MAX]
Returns the attenuation level.
When using a tunable laser module with an in-built optical attenuator, the value returned
applies only to the attenuation mode (see "[:SOURce[n]][:CHANnel[m]]:POWer:ATTenua-
tion:AUTO" on page 99).
Use [l] to query the attenuation level of the upper or lower wavelength laser source of a
dual-wavelength laser source or of a return loss module with an internal dual-wavelength
laser source. The default value of [l] is 1, the lower wavelength source. The upper wave-
length source is denoted by 2.
Also allowed (for MIN: minimum amplitude level
tunable laser mod-
MAX: maximum amplitude level
ules only) are:
DEF: This is not the preset (*RST) default value but is half the sum of,
the minimum amplitude level and the maximum amplitude level
attenuation level relevant to the current value or specified parameter (if MIN, MAX, or DEF
are chosen as a parameter).
sour2:pow:att? def → +3.10000000+E001<END>
All tunable laser modules with an in-built optical attenuator, all laser source modules, and
return loss modules with an internal source
[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation:AUTO
[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation:AUTO<wsp>OFF|ON|0|1
Selects Automatic or Manual Attenuation Mode.
In Automatic Attenuation Mode, you specify the output power.
In Manual Attenuation Mode, you must specify both the laser output power, and the atten-
uation level.
OFF or 0:
ON or 1:
none
sour2:pow:att:auto 1
All tunable laser modules with an in-built optical attenuator
[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation:AUTO?
[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation:AUTO?
Returns whether the instrument is in Automatic or Manual Attenuation Mode.
none
Manual Attenuation Mode
0:
Automatic Attenuation Mode
1:
sour2:pow:att:auto?
All tunable laser modules with an in-built optical attenuator
Measurement Operations & Settings
Attenuation Mode
Power Mode
→
1<END>
99