
A
Stabilizing
Stabilizing
is
the
process
of
heating
up
the
heat
chamber
to
its
operating
temperature
(5561
C).
The
length
of
time
taken
depends
on
how
warm
the
heat
chamber
is
when
the
instrument
is
rst
switched
on.
Under
normal
(laboratory)
conditions
,
this
takes
approximately
one
hour
.
The
percentage
of
operating
temperature
that
has
been
reached
is
displayed
as
part
of
the
STABILIZING
message
that
is
shown
at
the
top
of
the
screen
during
the
process
.
The
instrument
only
meets
specications
while
the
heat
chamber
is
at
the
operating
temperature
.
If
you
try
to
set
a
power
level
which
cannot
be
supplied
during
the
stabilizing,
then
the
AVAILABLE
message
is
displayed
with
the
maximum
power
that
is
available
.
Note
If
the
value
is
simultaneously
too
low
for
the
coherence
control,
if
you
are
also
using
this
,
the
AVAILABLE
is
shortened
to
AVA.
Stabilizing
during
Operation
The
instrument
will
maintain
the
heat
chamber
within
the
operating
limits
(54
C! 56
C)
if
you
are
using
the
instrument
in
a
normal
laboratory
environment.
If
you
are
using
the
tunable
laser
source
in
either
an
extremely
warm,
or
an
extremely
cold
environment,
the
STABILIZING
message
may
appear
from
time
to
time
as
the
instrument
tries
to
get
back
to
the
operating
temperature
.
The
stabilizing
level
should
not
decrease
beyond
95%.
In
an
extreme
case
,
the
STABILIZING
message
will
appear
and
the
percentage
value
will
decrease
below
95%,
and
possibly
keep
decreasing.
In
this
case
you
should
switch
o
the
instrument,
and
let
it
cool
down
completely
before
powering
it
up
again.
A-8
Installation
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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