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D
Example
T
est
T
est
Description
Minimum
Result
Maximum
Measurement
No
.
Spec
.
Spec
.
Uncertainty
I.
Insertion
Loss
V
ariation
with
Rotation
of
/4
and
/2
Plates
W
avelength
Maximum
Minimum
Dierence
P
ower
P
ower
1470nm
-32.401dBm
-32.421dBm
0.020dB
pp
0.060dB
pp
1510nm
-32.510dBm
-32.539dBm
0.019dB
pp
0.060dB
pp
1540nm
-32.444dBm
-32.465dBm
0.021dB
pp
0.060dB
pp
1560nm
-32.506dBm
-32.526dBm
0.020dB
pp
0.060dB
pp
Insertion
Loss
versus
W
avelength
1.
Make
sure
all
the
connectors
you
will
be
using
are
clean.
2.
Set
up
the
hardware
as
shown
in
Figure
D-1.
F
or
option
#020
rst
splice
a
HP
81102BC
patchcord
to
the
pigtail
of
the
P
ol-port
Make
sure
that
all
instruments
have
warmed
up
.
Fix
all
cables
with
tape
so
that
they
won't
move
during
measurements
.
3.
Set
up
the
8153A.
a.
Zero
the
8153A:
press
4
Zero
5 .
b.
Set
8153A
to
dBm
:
press
4
dBm/W
5
until
display
shows
dBm.
c.
Set
8153A
to
1
sec
measuring
time:
press
4
Pa
ram
5
until
T
is
shown,
set
T
to
200ms
by
using
the
Modify
keys
.
d.
Set
8153A
to
wavelength=1470
nm:
press
4
Pa
ram
5
until
is
shown,
set
to
1470
by
using
the
Modify
keys
.
4.
Set
up
the
8168C.
P
erformance
T
est
D-5