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Configuration and operation overview
External bus This 15 pin port connects power, communications and the interlock circuit to any
external accessories used with the laser. When no accessories are used with the
laser, connect the interlock defeater plug onto this port – see “External bus” on
page 80.
COAX trig input You can trigger emission of output pulses from the laser using this BNC coaxial
input. This input accepts logic level trigger signals at 50 Ω impedance. See
“Trigger input ports” on page 82 for further information.
Industrial trig input Similar to the COAX trig input port, you can trigger emission of output pulses
from the laser using this two pin connector input. This port has a higher
impedance and wider voltage range and is electrically isolated from the laser.
However, the actual trigger thresholds set pulse emission ON and OFF are fixed
within the input voltage range. See “Trigger input ports” on page 82 for further
information.
Configuration and operation overview
The laser is operated by using either NKTP’s CONTROL application on an
external PC or your own custom application, using NKTP’s Software
Development Kit (SDK), connected to the laser over one of the laser’s rear panel
serial interfaces shown in Figure 6. To ensure safety, a key switch and door
interlock circuit provides overriding control of the laser, to help prevent
accidental exposure to emission.
Note: If both serial ports are connected, the USB port will have priority.
Note: Multiple lasers can be managed from the same PC using CONTROL. The
application automatically detects connected NKTP lasers and their accessories.
Note: Once connected, you can use CONTROL to manage the laser’s emission
and power settings. Additionally, CONTROL can be used to upload firmware or
download the laser’s log file.
Note: The Chapter “Connecting and Turning ON the Laser” on page 45 provides
the details and procedures on how to connect CONTROL to the laser.
Advanced laser
control
As mentioned previously, the laser can be controlled from a custom platform
connected to either the USB or serial port. To build your own custom control
application, NKTP provides an SDK Kit which can be downloaded from:
https://www.nktphotonics.com/lasers-fibers/support/software-drivers/
Key switch and
interlock safety
To enhance safety, the laser is equipped with an interlock interface and a keyed
switch. The two components work together to safely control laser emission. Both
the interlock safety switch (door closed position) and the laser key switch must
be in the ON position to permit laser emission using management commands.
The interlock interface is connected to a switch which is activated by an access
door in the enclosure surrounding the laser emission area. If the door
unexpectedly opens, the door switch circuit will also open and laser emission is
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