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34
Chapter 3
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.
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
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
Im
LIMIT
P
LIMIT
Open
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Laser Diode Driver Module Operation
Figure 18 - Laser Main Screen
= fields above, indicate measured values, such as laser current or voltage,
f
When illuminated, indicates the unit is current limiting.
When illuminated, indicates the unit has exceeded the monitor
photodiode current limit.
When illuminated, indicates the unit has exceeded the monitor
photodiode power limit.
When illuminated, indicates the system has detected an open
circuit. Only detected when the unit is on.
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