Document Type

Article

Publication Date

Spring 3-21-2006

Publication Title

Physical Review A

ISSN

1050-2947

Volume

73

Issue

3

First Page

031804(R)-1

Last Page

031804(R)-4

DOI

10.1103/PhysRevA.73.031804

Abstract

We perform detailed studies of state-of-the-art laser stabilization to high finesse optical cavities, revealing fundamental mechanical thermal noise-related length fluctuations. We compare the frequency noise of lasers tightly locked to the resonances of a variety of rigid Fabry-Perot cavities of differing lengths and mirror substrate materials. The results are in agreement with the theoretical model proposed in K. Numata, A. Kemery, and J. Camp [Phys. Rev. Lett. 93, 250602 (2004)]. The results presented here on the fundamental limits of FP references will impact planning and construction of next generation ultrastable optical cavities.

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