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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2530–2533

Active stabilization of a Michelson interferometer at an arbitrary phase with subnanometer resolution

Davide Grassani, Matteo Galli, and Daniele Bajoni  »View Author Affiliations


Optics Letters, Vol. 39, Issue 8, pp. 2530-2533 (2014)
http://dx.doi.org/10.1364/OL.39.002530


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Abstract

We report on the active stabilization of a Michelson interferometer at an arbitrary phase angle with a precision better than 1° at λ=632.8nm, which corresponds to a precision in the optical path difference between the two arms of less than 1 nm. The stabilization method is ditherless, and the error signal is computed from the spatial shift of the interference pattern of a reference laser, measured in real-time with a CCD array detector. We discuss the usefulness of this method for nanopositioning, optical interferometry, and quantum optical experiments.

© 2014 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(260.3160) Physical optics : Interference

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: December 30, 2013
Revised Manuscript: March 7, 2014
Manuscript Accepted: March 9, 2014
Published: April 15, 2014

Citation
Davide Grassani, Matteo Galli, and Daniele Bajoni, "Active stabilization of a Michelson interferometer at an arbitrary phase with subnanometer resolution," Opt. Lett. 39, 2530-2533 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-8-2530

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