Simulation meeting 2022 Mar 31 15:00

Zoom2: https://zoom.us/j/6676627462

Participants

Marc Eisenmann, Naoki Koyama, Haoyu Wang, Yuhang Zhao

Agenda

Updates from Projects

• Birefringence simulation

  • The p-pol beam shape was measured in KAGRA. klog 20103

  • We try our best to calibrate the TWE maps and compare the beam shape simulation with the measurement. caliTWE

  • Offset, tilt and centering can largely influence our birefringence maps. We are not sure how much error is there in Hirose-san's TWE measurements.
  • We remove the gravity induced deformation in the TWE maps.
• Future plan
  • Measure p-pol beam shape for ITMY.
  • Measure power of s/p pol beam and arm cavity round trip loss.
  • Measure p-pol beam shape vs. beam position on ITMs