Repeated these measurements after changes to the RFPDs (Notch improved).

Inferences:

• No significant shape change is observed in the Open loop Transfer Functions (OLTFs).
• Only minor absolute value changes have happened which just indicate a change in overall transimpedance at omega frequencies of the RFPDs.
• This indicates that if non-linearity was affecting anything, it at least wasn't the shape of the OLTFs or the suppression of laser noise.
• Also, these measurements endorse that no major harm has been done to the circuits in the process of modification (as should be the case).

Data