Thermal Compensation
GEO600 pioneered the use of thermal compensation systems for the control of the radii of curvature of its end mirrors and tuning of the signal recycling. Another system compensates the thermal lens inside the beamsplitter.
Relevant publications
Thermal correction of astigmatism in the gravitational wave observatory GEO 600
Class. Quantum Grav. 31 (2014) 065008
Thermal correction of the radii of curvature of mirrors for GEO 600
Classical and Quantum Gravity, Volume 21, Number 5 (2004)
Thermisch durchstimmbares Signal-Recycling für den Gravitationswellendetektor GEO600
Diploma thesis (2003)
Correction of wavefront distortions by means of thermally adaptive optics
Optics Communications, Volume 175, Issues 4–6 (2000)
Korrektur von Wellenfrontverzerrungen durch thermisch adaptive Optik
Diploma thesis (1995)