As the table was floated, we measured the noise from error point again.
We tried to determine if the noise bump we saw were from the window, so we place an extra window in front of a mirror [add fig] and compare to the noise when there was no window. The results are not different that much.
From a quick look, by adjusting the input power, from 1mW to 10mW. The shape of the noise from error point changes substantially. This could be come from RFAM or scattering. I'll measure the noise vs input power after I optimize everything first. RFAM, beam splitter, back reflection have to be optimized.
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