8.LASER OPTICAL SYSTEM B-70315EN/02
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(4) (5)
(3)
(2)
In (3), the power is decreased,
indicating that the direction is wrong.
So, in (5), the adjustment screw is
returned to the original position.
(1)
(6)
(7) (8)
(9)
(10)
=7.580
=7.570
=7.590
=7.600
=7.610
=7.620
=7.630
=7.640
=7.590
Counterclockwise
(1)
Power
Power
5 15
10
5
Initial setting of A = 7.590
Clockwise
B is adjusted to obtain a maximum power.
Same state as (1)
(10)
(6)
Power
=7.650
=7.590
(1)
(7)
(8)
(9)
(1’)
=7.638
=7.614
B is adjusted to obtain a maximum power.
maximum power is obtained based on B.
Maximum power position of A
= (7.590+7.638) / 2
= 7.614
Do not determine the maximum power position of A at the actual maximum power point (peak point).
Instead, find the first position (1)' with the same power after a peak, and set a position halfway between (1)
and (1)'. Adjust B to obtain a maximum power at that position.
maximum power is obtained based on B.
30% below peak