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Proceedings Paper

Application of optical frequency comb in LISA space laser interferometry
Author(s): Nan Yu; Quentin Vinckier; Ivan Grudinin; Daniel Rieländer; Massimo Tinto
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Paper Abstract

Time delay interferometer (TDI) is the baseline technique to mitigate laser phase noises in laser interferometer space antenna (LISA) for gravitational wave detection. Just as important in the TDI scheme is the ability to suppress the local oscillator radio-frequency (rf) noises in the optical heterodyne measurements. This is accomplished currently by sending additional clock tones in the ranging laser and recovering the clock signals with additional heterodyne measurements. We show that the laser and local oscillator noises can be simultaneously cancelled by employing optical frequency combs in which the rf signal phases are coherent with the optical phases. We describe an effort for the experimental demonstration of the optical frequency comb based TDI. The deployment of optical combs eliminates the need for separate ultra-stable oscillators. This approach can be a simpler and more reliable approach than the current modulation scheme. It is applicable to the most generalized TDI combinations.

Paper Details

Date Published: 25 February 2020
PDF: 6 pages
Proc. SPIE 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, 112962M (25 February 2020);
Show Author Affiliations
Nan Yu, Jet Propulsion Lab. (United States)
Quentin Vinckier, Jet Propulsion Lab. (United States)
Ivan Grudinin, Jet Propulsion Lab. (United States)
Daniel Rieländer, Jet Propulsion Lab. (United States)
Massimo Tinto, Univ. of California, San Diego (United States)


Published in SPIE Proceedings Vol. 11296:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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