• Alignment_Sensing_and_Control

• Design and ASC scheme after we design one for AdvLIGO

• Implement and test the new InGaAs, in-vac, high power, FTC WFS. The 40m WFS need not be

  • in-vac, but they should be packaged as such.
• Measure spring stuff

• Simulink Model of 40m Optical Springs

This file attachment:40m.pdf contains some results for the 40m ASC sensing matrix.

The input for this calculation was taken from 40m web page: http://www.ligo.caltech.edu/~ajw/40m_upgrade.html. The loss per optic was increased from 37.5 ppm to more realistic 100 ppm.

DC Alignment

Below are two diagrams which illustrate the proposed method to align the 40m IFO. Currently the