Woolf, Benjamin Edward

Bomberger, E. Douglas

doi:10.1093/gmo/9781561592630.article.a2087803

Oxford Music Online 2010

DOI: 10.1093/gmo/9781561592630.article.a2087803

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Woolf, Benjamin Edward

E. Douglas Bomberger¹

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2020

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“…Thermal compensation systems (TCS) in LIGO [8] and Virgo [9] aim to reduce the effects of this absorptioninduced wavefront distortion in the current generation of detectors. However, these systems use auxiliary probe beams to sense the distortion in core optics.…”

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confidence: 99%

Optical lock-in camera for gravitational wave detectors

et al. 2020

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Knowledge of the intensity and phase profiles of spectral components in a coherent optical field is critical for a wide range of high-precision optical applications. One of these is interferometric gravitational wave detectors, which rely on such fields for precise control of the experiment. Here we demonstrate a new device, an optical lock-in camera, and highlight how they can be used within a gravitational wave interferometer to directly image fields at a higher spatial and temporal resolution than previously possible. This improvement is achieved using a Pockels cell as a fast optical switch which transforms each pixel on a sCMOS array into an optical lock-in amplifier. We demonstrate that the optical lock-in camera can image fields with 2 Mpx resolution at 10 Hz with a sensitivity of -62 dBc when averaged over 2s. arXiv:1907.05224v1 [astro-ph.IM]

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Optical lock-in camera for gravitational wave detectors

et al. 2020

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Woolf, Benjamin Edward

Cited by 1 publication

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Optical lock-in camera for gravitational wave detectors

Optical lock-in camera for gravitational wave detectors

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