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Thermal-noise-limited optical cavity

Webster, S A; Oxborrow, M; Pugla, S; Milo, J*; Gill, P (2008) Thermal-noise-limited optical cavity. Phys. Rev. A, 77 (3). 033847

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A pair of optical cavities are designed and set up so as to be insensitive to both temperature fluctuations and mechanical vibrations. With the influence of these perturbations removed, a fundamental limit to the frequency stability of the optical cavity is revealed. The stability of a laser locked to the cavity reaches a floor <2x 10^{-15} for averaging times in the range 0.5-100\,s. This limit may be attributed to Brownian motion of the mirror substrates and coatings.

Item Type: Article
Keywords: thermal noise, optical cavity, laser stabilisation
Subjects: Time and Frequency
Time and Frequency > Optical Frequency Standards and Metrology
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4350

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