Pin Assignment Ld Connector - THORLABS ITC8 Series Operation Manual

16 Connecting components
_________________________________________________________________________________

1.6.1 Pin assignment LD connector

Figure 2 Pin assignment of the laser diode connector (female)
Pin Function
Interlock, status LED
1 output for interlock and status LASER ON/OFF
5 ground for pin 1
Laser diode
7 laser diode cathode (with polarity AG)
8 laser diode anode (with polarity CG)
3 laser diode ground
Monitor diode
4 monitor diode input
2 monitor diode ground
Measurement input for laser diode voltage
9 laser diode anode
6 laser diode cathode
We recommend to use separate lines drilled in pairs (twisted pair) in a common
shield for laser diode current, monitor diode current and laser voltage measurement.
The shield has to be connected to ground (pin 3).
If an external monitor diode is used, it must be connected with a coaxial cable with
the outer conductor to pin 2 and the inner conductor to pin 4.
______________________________________________________________________________________________________
5
9
4
8
3
7
2
6
1
© 2010 Thorlabs