For Aligining along Fast Axis

 

The LC was rotated by 1.83 degrees and so the initial position now was 15.41 degrees. See Fig 1 for reference, and Fiig 2 and 3 are to understand how the power at transmission changes with LC rotation.

 

Also, to better understand the axis orientation we fit the data obtained from Fig 1 to a linear function. See Fig 4 for reference. 

 

What I don't understand is how did it deviate by 18 degrees if it was just rotated by 1(that too in the opposite direction)

folder_name = r'C:\Users\atama\OneDrive\LC-Experiment\Measurement Data\LC2_calibration data\fast axis 11'