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AOS (Beam Reducing Telescopes)
tomotada.akutsu - 11:43 Wednesday 04 September 2019 (10316) Print this report
Comment to Profiling green beam at TMSY's Gouy phase telescope at Yend (10272)

The attached spectra are raw signals from TMSY Gr QPDs after I re-located (and before we turned off the green light the last night). Hopefully, it would become useful... It seems the TMSY-GR is still less sensitive than those TM oplevs due to turbulence. We need a wind shield for the Gr QPDs if we would like to make it more sensitive, but you know, it would not be so easy to cover the setup now... (Fig 1 shows all, Fig 2 show just the TMS-related signals.)

By the way, Fig 3 and 4 show the beam spots where the GQPD1 and 2 were located, respectively. Well, more precisely putting, I just expect they were located where those figures were taken.

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