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Electronic phase delay—a first step towards a bench-top model of LISA

James Ira Thorpe, Rachel Jean Cruz, Shannon Sankar and Guido Mueller

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Electronic phase delay (EPD), a new technique for delaying the phase of a signal by an arbitrary amount, is presented as the basis for a model of the Laser Interferometer Space Antenna (LISA). The validity of EPD is demonstrated by constructing a synthetic interferometer (SI) with a single-arm time delay of 1 s. Schemes for studying the phase noise reduction techniques of arm-locking and time delay interferometry using EPD units are presented and discussed, with preliminary results for arm-locking. EPD can also be used as the basis for a bench-top model of LISA which will be used to study LISA interferometry and data analysis methods.


PACS

04.80.Nn Gravitational wave detectors and experiments

07.60.Ly Interferometers

95.55.Ym Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques

MSC

83C35 Gravitational waves

Subjects

Instrumentation and measurement

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 10 (21 May 2005)

Received 28 October 2004, in final form 10 January 2005

Published 21 April 2005



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