2
Setup
for
setting
the
position
of
the
polarizing
lter
.
3.
Switch
on
both
instruments
,
and
enable
the
laser
source
.
4.
Set
the
channel
with
the
sensor
module
to
the
wavelength
of
the
source
,
and
select
the
default
averaging
speed
(200ms).
Note
Under
normal
circumstances
you
should
leave
the
instruments
to
warmup
.
(The
multimeter
needs
around
20
minutes
to
warmup
.)
W
arming
up
is
necessary
for
accuracy
of
the
sensor
,
and
the
output
power
of
the
source
.
Set
the
P
olarizing
Filter
.
5.
Press
4
Home
5
on
the
polarization
controller
.
6.
Press
4
Pos
5 .
7.
Set
the
angle
of
the
polarizing
lter
for
maximum
throughput.
a.
Type
in
10
and
press
4
Enter
5 .
b.
Press
4
)
5
twice
to
select
the
tens
digit.
c.
Using
the
Modify
knob
,
increase
the
angle
slowly
until
the
power
read
on
the
multimeter
increases
and
then
starts
to
decrease
.
d.
Press
4
)
5
once
to
select
the
units
digit.
e.
Using
the
Modify
knob
,
decrease
the
angle
slowly
until
the
power
read
on
the
multimeter
starts
to
decrease
.
f.
Press
4
)
5
twice
to
select
the
hundredths
digit.
Setting
a
State
of
P
olarization
2-5