Kiwamu, Daniel

The two Thorlabs PDs that measure the power after the EOM and at the bottom of the PSL periscope were originally intended for low frequency only. However, they can be useful for intensity noise characterization as well, so we used the two spare channels on the PD interface box to acquire AC coupled and amplified versions too. The AC coupling is at 4 Hz and the gain will be 200. The ascimc model has been updated with separate AC, DC and normalized channels. These are then used to form relative intensity noise channels.