Since I found we used to use high voltage deriver not in a proper way. The reason is demonstrated in the e-log entry before. Since this information is crucial for the filter design, I measured these transfer functions for which the high voltage drivers we didn't use properly. The result is uploaded to our wiki page with the name as listed below. However, I don't know if this coherence level is enough for our user.

For the data, please go to the following page to download. https://gwpo.nao.ac.jp/wiki/FilterCavity/Transfer%20Function