R&D (FilterCavity)
YuhangZhao - 11:12, Monday 17 October 2022 (3090)
SHG alignment and mode matching are basically recovered as the old situation

After replacing wedged crystal EOM with the old one, we had alignment and mode matching seriously messed up.

Now the alignment and mode matching have been recovered.

The higher order modes and TEM00 power are shown in the attached figures.

Now, the mode matching level is: 1.68/(1.68+0.036+0.052) = 95%

Images attached to this report
3090_20221017040843_wechatimg73.jpeg 3090_20221017040851_wechatimg74.jpeg 3090_20221017040857_wechatimg75.jpeg