An optical readout for the LISA gravitational reference sensor [Elektronische Ressource] / Thilo Schuldt. Gutachter: Achim Peters ; Claus Braxmaier ; Hans-Jürgen Wünsche

An Optical Readout for theLISA Gravitational Reference SensorDISSERTATIONzur Erlangung des akademischen GradesDr. rer. natim Fach Physikeingereicht an derMathematisch-Naturwissenschaftlichen Fakultät IHumboldt-Universität zu BerlinvonDipl. Phys. Thilo Schuldtgeboren am 19.04.1975 in SingenPräsident der Humboldt-Universität zu Berlin:Prof. Dr. Dr. h.c. Christoph MarkschiesDekan der Mathematisch-Naturwissenschaftlichen Fakultät I:Prof. Dr. Lutz-Helmut SchönGutachter:1. Prof. Achim Peters, Ph.D.2. Prof. Dr. Claus Braxmaier3. PD Dr. Hans-Jürgen Wünscheeingereicht am: 15.10.2009Tag der mündlichen Prüfung: 14.07.2010AbstractThe space-based gravitational wave detector LISA (Laser InterferometerSpace Antenna) consists of three identical satellites. Each satellite accommo-dates two free-flying proof masses whose distance and tilt with respect to itspcorresponding optical bench must be measured with at least 1 pm/ Hz sensi-ptivity in translation and at least 10 nrad/ Hz sensitivity in tilt measurement.In this thesis, a compact optical readout system – consisting of an op-tomechatronic setup together with associated electronics, data acquisition andsoftware – is presented, which serves as a prototype for the LISA proof massattitude metrology. We developed a polarizing heterodyne interferometer withspatially separated frequencies.