Agilent Technologies 8163A Programming Manual page 96

Measurement Operations & Settings
command:
syntax:
description:
parameters:
NO TE
NO TE
NO TE
response:
example:
affects:
command:
syntax:
description:
NO TE
parameters:
response:
example:
affects:
96
[:SOURce[n]][:CHANnel[m]]:AM:STATe[l]
[:SOURce[n]][:CHANnel[m]]:AM:STATe[l]<wsp> OFF|ON|0|1
Enables and disables amplitude modulation of the laser output.
A boolean value:
Use [l] to enable/disable amplitude modulation for the upper or lower wavelength laser
source of a dual-wavelength laser source or a return loss module with an internal dual-
wavelength laser source. The default value of [l] is 1, the lower wavelength source. The
upper wavelength source is denoted by 2.
When the internal modulation is selected, the Modulation Output on the front
panel outputs a version of the modulating signal that has the same frequency and
phase as the modulating signal, but has a fixed, TTL-level amplitude. You can use
this to synchronize your external measuring equipment to your instrument.
To allow for your possible synchronization requirements, there are two ways in
which the signal can be output. Either the signal is combined with the laser-ready
signal, so that the output is kept low when there is no optical signal being output
(for example, while the laser is settling after a change of wavelength). Or the
modulation signal is output all the time. This is set by the :SOURCE:MODOUT
command (see "[:SOURce[n]][:CHANnel[m]]:MODout" on page 97).
When you enable lambda logging, see
"[:SOURce[n]][:CHANnel[m]]:WAVelength:SWEep:LLOGging" on page 111, and
modulation simultaneously, a sweep can not be started, see
"[:SOURce[n]][:CHANnel[m]]:WAVelength:SWEep:[STATe]" on page 115.
none
sour2:am:stat 0
All laser source, DFB source, and tunable laser modules
[:SOURce[n]][:CHANnel[m]]:AM:STATe[l]?
[:SOURce[n]][:CHANnel[m]]:AM:STATe[l]?
Returns the current state of modulation.
Use [l] to query the current state of modulation of the upper or lower wavelength laser
source of a dual-wavelength laser source or a return loss module with an internal dual-
wavelength laser source. The default value of [l] is 1, the lower wavelength source. The
upper wavelength source is denoted by 2.
none
A boolean value:
→
sour2:am:stat?
All laser source, DFB source, and tunable laser modules
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System,
& Agilent 8166A Lightwave Multichannel System, Third Edition
Signal Generation – The SOURce Subsystem
OFF or 0: modulation disabled (default)
ON or 1: modulation enabled.
0: modulation is disabled
1: modulation is enabled
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