HP 8163A Programming Manual page 99

command: [:SOURce[n]][:CHANnel[n]]:AM:STATe
syntax: [:SOURce[n]][:CHANnel[n]]:AM:STATe<wsp> OFF|ON|0|1
description: Enables and disables amplitude modulation of the laser output.
parameters: A boolean value:
NOT E
response: none
example:
sour2:am:stat 0
affects: All source modules
command: [:SOURce[n]][:CHANnel[n]]:AM:STATe?
syntax: [:SOURce[n]][:CHANnel[n]]:AM:STATe?
description: Returns the current state of modulation.
parameters: none
response: A boolean value:
example:
sour2:am:stat?
affects: All source modules
Introduction to Programming
Signal Generation – The SOURce Subsystem
OFF or 0: modulation disabled (default)
ON or 1: modulation enabled.
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[n]]:MODout on page 100).
0: modulation is disabled
1: modulation is enabled
→
0<END>
99