with BS removed, I aligned the BB1EO3 at 45 degree. This is to check if Polarization ray tracing analysis is correct for coatings. 

LC goes from 0-3.5V with 0.1V step and 100 averaging

C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Birefringence Measurements\Coating measurement\BB1-E03\20241022\Tue, Oct 22, 2024 3-37-46 PM.txt