Newport 8000 - Laser Main Screen; Figure 18 - Laser Main Screen

34 Chapter 3 Laser Diode Driver Module Operation
3.5.2 Laser Main Screen
The laser main screen in shown in Figure 18 and described in detail below. Certain
features are not available on some modules.
Figure 18 - Laser Main Screen
Io=
,
Im=
or
Po=
- When these fields are editable, such as the
Io=
field in the figure
above, they indicate the corresponding set point. Non-editable fields, such as the
Im=
and
V
f
=
fields above, indicate measured values, such as laser current or voltage,
photodiode current, or photodiode power.
OFF/ON
- Indicates the state of the laser's output. Pushing the adjacent soft key
toggles the state.
Mod
- This button will be available only on 8000-22 combo modules while in Io
mode. Pushing the adjacent soft key activates the modulation setup screen.
Setup
- Pushing the adjacent soft key activates the setup screen.
The bottom line on the display has 6 “LED” elements, each indicating a particular
state of the laser. They are defined as:
I
LIMIT
When illuminated, indicates the unit is current limiting.
Im
LIMIT
When illuminated, indicates the unit has exceeded the monitor
photodiode current limit.
P
LIMIT
When illuminated, indicates the unit has exceeded the monitor
photodiode power limit.
Open
When illuminated, indicates the system has detected an open
circuit. Only detected when the unit is on.
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