D
F
or
option
#020
rst
splice
a
HP
81101BC
patchcord
to
the
pigtail
of
the
/2-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
A
uto
ranging:
press
4
Auto
5
c.
Set
wavelength
to
1470nm:
press
4
Pa
ram
5
until
appears
use
Modify
keys
to
set
the
appropriate
value
.
d.
Set
display
to
dB:
press
4
dB
5
e.
Set
to
averaging
time
50ms:
press
4
Pa
ram
5
until
T
appears
use
Modify
keys
to
set
the
appropriate
T
value
.
4.
Set
up
8168C:
a.
Set
wavelength
to
1470nm
:
press
4
W
avelength
5 ,
type
\1470",
press
4
Enter
5 .
b.
Set
power
to
400W:
press
4
Output
Pow
er
5 ,
type
\400",
press
4
Enter
5 .
c.
A
ctivate
Optical
Output.
5.
Set
up
the
8169A:
a.
Set
to
Home
position:
press
4
Home
5
6.
A
djust
the
tunable
lter
to
get
maximum
transmission:
8153A
display
shall
show
maximum
reading
(minimum
value
at
negative
sign).
7.
Set
8169A
(DUT)
to
maximum
transmission:
a.
Set
the
polarizing
lter
for
maximum
transmission
(see
\Setting
the
P
osition
of
the
P
olarizing
Filter"
in
Chapter
2).
b.
Set
8169A
(DUT)
to
Circle:
press
4
Circle
5
c.
Select
2
P
and
turn
the
knob
to
get
maximum
reading
on
8153A
display
.
d.
Select
2"
B
and
turn
knob
to
get
maximum
reading
on
8153A
display
.
8.
On
the
8153A:
press
4
Disp->Ref
5 .
9.
A
dd
180
degrees
to
displayed
value
of
2"
B
and
enter
this
value:
type
new
value
,
press
4
Enter
5
10.
Set
8169A
(DUT)
to
minimum
transmission:
P
erformance
T
est
D-11