Coupling photodiode and Thorlabs brushed motor controller

[Romanus58]

I am trying to couple a  KDC101 - K-Cube Brushed DC Servo Motor Controller and a PDA36A photodetector to correct for drift of a mounted optical element. The photodetector records the signal from a laser, which is displayed using a waveform diagram plotting voltage vs time. The maximum value of the signal will be sent to the stage that's holding an optical element, and the stage rotates to a position where the maximum intensity of the laser propagates through the optical element. The stage should also be able to rotate until the maximum intensity of the laser is being injected into the optical element. I have created a VI that can access both devices, but I do not know how to couple the two for the task that I am trying to complete. 

Any suggestion on how to couple the devices in my VI would be helpful. Thank you.

[Eric-408]

Are you using Kinesis?  They have a good article on Thorlabs on using them and you can get a power meter and one of their detectors and they have a vi for that which you can mod.  

Im looking at a similar kind of problem. Not sure how you would sinc your measurement but what I would recommend you do is have the stage translate at a steady rate and use a time stamp to link your motion and detection operations via a constant velocity or a correlation between stepper motor index and time. Then you can just do a free run with a while loop and use time as a gating control