Light Squeezing in a Fabry–Perot Cavity

M.M. El-Nicklawy, A.F. Hassan, Salah M.M. Salman +1 more

A. S. Parkins, Crispin W. Gardiner

The inhibition of atomic phase decays by squeezed light, as first predicted by Gardiner [Phys. Rev. Lett. 56, 1917 (1986)], has yet to be confirmed experimentally. A major obstacle to such an experiment is the production of an effective squeezed-vacuum--atom coupling, so that the atom interacts only with squeezed modes of the radiation field. In this paper we propose the use of a microscopic plane-mirror Fabry-P\'erot cavity to effect a strong selection of modes coupling to the atom. It is shown that a significant reduction in fluctuations experienced by the atom can be achieved in one quadrature, with an input squeezed beam of modest angular dimensions, provided that the phase (and to lesser extent the amplitude) characteristics of the input beam are suitably matched to the cavity.

T Mori, K. Agatsuma, S. W. Ballmer +5 more

In order to observe quantum radiation pressure noise and reduce it by measuring the ponderomotively squeezed light on a table-top experiment, we are developing a laser interferometer with Fabry-Perot cavities with very small suspended mirrors. As a preliminary setup, we have constructed a Fabry-Perot cavity of finesse 1300 with a suspended mirror of 20 mg. The cavity was locked stably at low laser power for which the classical radiation pressure caused little effect on the dynamics of the small mirror. For the stable operation of this cavity with higher laser power, a technique to control the motion of the small mirror, especially its yaw motion, is necessary. We describe that the motion can be stabilized through the radiation pressure of light inside the cavity, by controlling the motion of the front mirror of a Fabry-Perot cavity properly.

Martin Wilkens, Pierre Meystre

Simona Mosca, A. Borrielli, Iolanda Ricciardi +5 more

We present the possibility of manipulating and controlling the field quadrature fluctuations of squeezed light by effect of opto-mechanical interaction, using a Fabry-Perot cavity, whose end-mirror is a mechanical resonator.

Xinxin Hu, Changling Zhao, Zhu-Bo Wang +5 more