Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster: Quantum Optics and Photonics I
Q 15.71: Poster
Montag, 23. März 2015, 17:00–19:00, C/Foyer
Length Sensing and Control of Einstein Telescope-Low Frequency — •Vaishali Adya1 and Sean Leavey2 — 1Max Planck institute for Gravitational Physics, AEI, Hannover, Germany — 2University of Glasgow,Glasgow,Scotland
It is important to be able to control the positions of the mirrors in the interferometer in order to maintain maximum sensitivity to gravitational waves.We describe the development of a feasible length sensing and control scheme for the Einstein telescope operating in the low frequency regime which has a dual recycled Michelson topology with Fabry-Perot arm cavities. A preliminary DC sensing matrix has been obtained using models built with two interferometer simulation packages (Optickle and FINESSE) . We also worked on the optimisation of several optical parameters such as the length of the recycling cavities and the modulation frequencies, the details of which are also described in the talk.