Development of a high power optical cavity for optomechanical QND experiment

T. Mori, K. Agatsuma, S. Ballmer, S. Sakata, O. Miyakawa, S. Kawamura, A. Furusawa, N. Mio

Research output: Contribution to journalConference Articlepeer-review

1 Scopus citations


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.

Original languageEnglish (US)
Article number012015
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 2012
Event9th Edoardo Amaldi Conference on Gravitational Waves, Amaldi 9 and the 2011 Numerical Relativity - Data Analysis Meeting, NRDA 2011 - Cardiff, United Kingdom
Duration: Jul 10 2011Jul 15 2011

ASJC Scopus subject areas

  • General Physics and Astronomy


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