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Fulda P, Voss D, Mueller C, et al. Alignment sensing for optical cavities using radio-frequency jitter modulation. Appl Opt. 2017;56(13):3879-3888doi: 10.1364/AO.56.003879.
Fulda, P., Voss, D., Mueller, C., Ortega, L. F., Ciani, G., Mueller, G., & Tanner, D. B. (2017). Alignment sensing for optical cavities using radio-frequency jitter modulation. Applied optics, 56(13), 3879-3888. https://doi.org/10.1364/AO.56.003879
Fulda, P, et al. "Alignment sensing for optical cavities using radio-frequency jitter modulation." Applied optics vol. 56,13 (2017): 3879-3888. doi: https://doi.org/10.1364/AO.56.003879
Fulda P, Voss D, Mueller C, Ortega LF, Ciani G, Mueller G, Tanner DB. Alignment sensing for optical cavities using radio-frequency jitter modulation. Appl Opt. 2017 May 01;56(13):3879-3888. doi: 10.1364/AO.56.003879. PMID: 28463282.
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Appl Opt. 2017 May 01;56(13):3879-3888. doi: 10.1364/AO.56.003879.

Alignment sensing for optical cavities using radio-frequency jitter modulation.

Applied optics

P Fulda, D Voss, C Mueller, L F Ortega, G Ciani, G Mueller, D B Tanner

PMID: 28463282 DOI: 10.1364/AO.56.003879

Abstract

Alignment sensing is often required in precision interferometry applications such as Advanced LIGO in order to achieve the optimum performance. Currently favored sensing schemes rely on the use of two separate radio-frequency (RF) quadrant photodetectors and Gouy phase telescopes to determine the alignment of a beam relative to an optical cavity axis. In this paper, we demonstrate an alternative sensing scheme that has potential advantages over the current standard schemes. We show that by using electro-optic beam deflectors to impose RF jitter sidebands on a beam, it is possible to extract full alignment signals for two in-line optical cavities from just one single-element photodetector in reflection of each cavity.

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