
A
Signal
Outputs
.
There
are
two
signal
outputs
on
the
front
panel
of
the
tunable
laser
source
.
One
of
these
is
the
Modulation
Output,
which
outputs
the
internal
signal
used
to
modulate
the
optical
output.
This
is
a
squarewave
signal
with
50%
duty
cycle
,
and
is
at
TTL
levels
(see
\Setting
the
Modulation
Output"
in
Chapter
3
and
\[:SOURCE]:MODOUT"
in
Chapter
5
for
more
information).
The
other
is
the
analog
output,
which
outputs
a
voltage
level
proportional
to
the
power
of
the
output
laser
signal.
The
relationship
between
this
voltage
level
and
the
output
power
is
not
calibrated,
but
is
approximately
1mV
for
each
1W
.
Caution
The
maximum
external
voltages
that
can
be
applied
to
the
outputs
of
this
instrument
are
610V
.
Optical
Output
Caution
If
the
optical
termination
on
your
instrument
is
angled,
you
can
only
use
cables
with
angled
connectors
with
the
instrument.
See
\Connector
Interfaces
and
Other
A
ccessories"
in
Appendix
B
for
further
details
on
connector
interfaces
and
accessories
.
Option
007
If
you
have
an
instrument
with
a
polarization
maintaining
ber
(PMF),
the
PMF
will
be
automatically
aligned
and
maintain
the
state
of
polarization..
The
ber
is
of
P
anda
type
,
with
T
E
mode
in
the
slow
axis
in
line
with
the
connector
key
.
Installation
A-9
Содержание 8167A
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Страница 164: ...D Figure D 1 Test Setup for the Wavelength Tests D 4 Performance Tests ...
Страница 168: ...D Figure D 2 Test Setup for the Maximum Output Power Test except HP 8168F D 8 Performance Tests ...
Страница 177: ...D Figure D 5 Test Setup for the Source Spontaneous Emission Test Performance Tests D 17 ...
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