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| == Designing and implementing a thermal compensation system for the 40m arm cavity == | = Thermal compensation system for the 40m arm cavity = |
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| The goal is to compensate for imperfections that arise due to optical inhomogeneities in the arm cavity mirrors by heating the ETM. | == Goal == To compensate for imperfections that arise due to optical inhomogeneities in the arm cavity mirrors by designing and implementing a thermal compensation system. |
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== Fact-finding == 1., What are the ideal cavity parameters? 2., Thermal effects due to circulating arm cavity power 3., HOM degeneracy 4., Increase or decrease RoC of the ETM to correct for inhomogeneities (also by how much) == Modelling using SIS == |
Thermal compensation system for the 40m arm cavity
Goal
To compensate for imperfections that arise due to optical inhomogeneities in the arm cavity mirrors by designing and implementing a thermal compensation system. The lessons learned from this exercise will help with designing/implementing a similar kind of system for the folding mirrors in the power recycling cavity.
Fact-finding
- 1., What are the ideal cavity parameters? 2., Thermal effects due to circulating arm cavity power 3., HOM degeneracy 4., Increase or decrease RoC of the ETM to correct for inhomogeneities (also by how much)