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GWINC
Up one levelGravitational Wave Interferometer Noise Calculator. Originally developed for LIGO, this version has been modified for Advanced Virgo. The main difference is in calculation of the suspension thermal noise.
Useful for studying/specifying top level parameters.
- Setting the SRM Transmission (and detune phase) by Robert Ward — last modified 2010-06-07 11:03
- Some plots showing various AdVirgo sensitivities, as SRM transmission and detune phase are varied. The readout quadrature (homodyne) is fixed at pi/2.
- figures by Robert Ward — last modified 2010-05-19 12:51
- Figures from GWINC.
- Choosing Arm Cavity ROCs by Robert Ward — last modified 2010-06-07 13:57
- Some plots showing how range can depend on choice of arm cavity mirror radii of curvature. The main factors considered are the change in thermal noise due to spot size and clipping losses due to spot size. The upshot is that with the current choice, a 2% deviation from spec will be a disaster.
- Choosing the Readout Quadrature by Robert Ward — last modified 2010-10-07 15:42
- In detuned interferometers, the GW signal is no longer purely in the phase quadrature. It now appears in a frequency-dependent manner in all quadratures, and so a choice must be made about which quadrature to detect (when using homodyne detection).
- Coating Thermal Noise by Robert Ward — last modified 2010-05-26 13:10
- Some information about mirror coating thermal noise.