Coming across the recent issues with labview and the several modifications, we saw that the observed characteristics of other components look better. Hence, we also chose to re-calibrate the BS

Pol states after LC without BS:

10 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Polarization states\20240613\Thu, Jun 13, 2024 4-52-27 PM.txt

100 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Polarization states\20240613\Thu, Jun 13, 2024 5-35-00 PM.txt

Flipped the BS and measure

with 100 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Beam Splitter Calibration\20240613\BackFaceRefl\10 avg\Fri, Jun 14, 2024 11-52-01 AM.txt

with 10 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Beam Splitter Calibration\20240613\BackFaceRefl\100 avg\Fri, Jun 14, 2024 1-22-15 PM.txt

The BS was flipped back to its original position

Pol states with BS :

10 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Polarization states\20240613\Sat, Jun 15, 2024 9-41-39 AM.txt

100 avg:C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Polarization states\20240613\Fri, Jun 14, 2024 10-54-07 PM.txt

Put camera in mirror reflection

I changed the mount of the mirror. Previously, I didn't notice, but I saw that when I rotated the mirror, the beam alignment changed(i.e the beam was rotating around a circumference of a circle) which could indicate that the way rotator mount is placed in the clamp mount, there is some inclination. To avoid discrepancy in considering normal incidence position, I changed the mount to using the mirror mount which is ideally used. 

BB1EO3 sample old :

10 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Coating measurement\BB1-E03\20240615\10 avg\Sat, Jun 15, 2024 8-17-41 PM.txt

100 avg: C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Coating measurement\BB1-E03\20240615\100 avg\Sat, Jun 15, 2024 5-26-09 PM.txt