A Demonstration of LISA Laser Communication

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

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minor corrections found in the CQG version

Scientific paper

10.1088/0264-9381/23/12/015

Over the past few years questions have been raised concerning the use of laser communications links between sciencecraft to transmit phase information crucial to the reduction of laser frequency noise in the LISA science measurement. The concern is that applying medium frequency phase modulations to the laser carrier could compromise the phase stability of the LISA fringe signal. We have modified the table-top interferometer presented in a previous article by applying phase modulations to the laser beams in order to evaluate the effects of such modulations on the LISA science fringe signal. We have demonstrated that the phase resolution of the science signal is not degraded by the presence of medium frequency phase modulations.

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