Speaker
Benjamin Schwab
(ECAP, FAU Erlangen-Nürnberg)
Description
To enable the detection of gravitational waves, the state of the interferometer must be known as precisely as possible. We describe a wavefront sensor in form of a camera, measuring the phase and intensity of all facilitated sidebands simultaneous for the 1550 nm interferometer of the Einstein Telescope. As novel feature, a fiber array of 8 x 8 is used with each fiber read-out by an individual photodiode to prevent optical crosstalk. With no moving parts, dynamical back scattering of light is fully prevented at possible data rates of 1 MHz. The implementation, commissioning in the laboratory, performance and possible applications are presented in this work.
Primary author
Benjamin Schwab
(ECAP, FAU Erlangen-Nürnberg)
