28 Chapter 3 Laser Diode Driver Module Operation
3. On all 700 series mounts, the temperature control cable must be connected for
maximum protection.
4. For maximum laser diode protection, the diode should be recessed, as in the 700-
C mount.
3.2 Laser Safety Features
3.2.1 Conditions Which Can Automatically Shut Off the Laser
Output.
• Laser Open Circuit
1
• Laser Compliance Voltage Limit
1
• Laser Hard Current Limit
1
• Laser Interlock State Changed
1
• Laser Photodiode High Current Limit
• Laser Photodiode High Power Limit
• Laser Intermittent Contact (if enabled, default disabled)
• A Linked Function
With the exception of the linked functions, some of these conditions can be disabled
by clearing the appropriate bits in the Laser OUTOFF register. See the
Computer
Interfacing Manual
.
3.2.2 Key switch Interlock
The LASER ENABLE key switch on the front panel will shutoff, or not allow to be
turned on, any laser outputs while in the OFF position, per CDRH requirements.
3.2.3 Turn On Delay
The 8000 is CDRH Compliant with a user programmable turn on delay. The default
turn on delay is three seconds, but is user programmable from 0 to 30 seconds. The
delay setting is in the system configure screen, which can be reached by pressing the
MENU
button, followed by the
Config
soft key, then the
System
soft key. The field
is labeled
On Delay
.
3.3 The Laser Connectors
On all laser modules, except the MOPA, a 9-pin female D-connector is used for input
and output connections, as shown by the pin-out diagram below.
Pin
Description
1
This condition will always shutdown the laser output, and cannot be disabled.
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