
5
[:SOURce]:AM:ST
A
T
e
Syntax
[:SOURce ]:AM:STATe
<wsp>
OFF j ON j 0 j1
Description
This
command
enables
and
disables
amplitude
modulation
of
the
laser
output.
Set
the
state
to
OFF
or
0
to
disable
modulation,
set
the
state
to
ON
or
1
to
enable
modulation.
The
default
is
for
the
modulation
to
be
disabled.
Modulation
Output
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
xed,
TTL-level
amplitude
.
Y
ou
can
use
this
to
synchronize
your
external
measuring
equipment
to
the
tunable
laser
source
.
T
o
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]:MODOUT").
[:SOURce]:AM:ST
A
T
e?
Syntax
[:SOURce ]:AM:STATe?
Description
The
query
returns
the
current
state
of
modulation.
A
returned
value
of
0
indicates
that
modulation
is
disabled.
A
returned
value
of
1
indicates
that
modulation
is
enabled.
Example
OUTPUT
724;":AM:STAT
ON"
OUTPUT
724;":AM:STAT?"
ENTER
724;A$
5-20
Remote
Commands
Summary of Contents for 8167A
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Page 164: ...D Figure D 1 Test Setup for the Wavelength Tests D 4 Performance Tests ...
Page 177: ...D Figure D 5 Test Setup for the Source Spontaneous Emission Test Performance Tests D 17 ...
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