nutsinee.kijbunchoo@LIGO.ORG - posted 10:27, Thursday 16 August 2018 - last comment - 13:11, Friday 17 August 2018(43469)
Camera and PD set up to look at SQZ IR trans
Terry, Nutsinee
A pick-off mirror is mounted on a manual Thorlabs flipper. The beam is then sent to a non-polarizing beam splitter then to Thorlabs PDA100A and a camera. They are there for additional/optional diagnostic so they're there for good. The PD is temporary hooked up to CH3 of the mad box (in place of CLF) for co-resonance temperature tuning.
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Added channels H1:SQZ-OPO_IR_LF (DAQ) and H1:SQZ-OPO_IR_DC (EPICS) to readout the new PD monitoring the IR light at the output of the OPO, when the beam diverter is closed and the flipper is in. The PD needs to be connected to the 2nd channel of the tabletop interface box on SQZT6.