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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 36 — Dec. 20, 2008
  • pp: 6832–6841

Interferometric testbed for nanometer level stabilization of environmental motion over long time scales

Kenji Numata and Jordan Camp  »View Author Affiliations


Applied Optics, Vol. 47, Issue 36, pp. 6832-6841 (2008)
http://dx.doi.org/10.1364/AO.47.006832


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Abstract

We developed an interferometric testbed to stabilize environmental motions over time scales of several hours and a length scale of 1 m . Typically, thermal and seismic motions on the ground are larger than 1 μm over these scales, affecting the precision of more sensitive measurements. To suppress such motions, we built an active stabilization system composed of interferometric sensors, a hexapod actuator, and a frequency-stabilized laser. With this stabilized testbed, environmental motions were suppressed down to the nanometer level. This system will allow us to perform sensitive measurements, such as ground testing of the Laser Interferometer Space Antenna, in the presence of environmental noise.

© 2008 Optical Society of America

OCIS Codes
(000.2780) General : Gravity
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(300.6380) Spectroscopy : Spectroscopy, modulation
(350.6090) Other areas of optics : Space optics
(120.4880) Instrumentation, measurement, and metrology : Optomechanics

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: September 29, 2008
Manuscript Accepted: October 31, 2008
Published: December 15, 2008

Citation
Kenji Numata and Jordan Camp, "Interferometric testbed for nanometer level stabilization of environmental motion over long time scales," Appl. Opt. 47, 6832-6841 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-36-6832

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