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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 18 — Sep. 15, 2011
  • pp: 3584–3586

Fiber-coupled displacement interferometry without periodic nonlinearity

Jonathan D. Ellis, Arjan J. H. Meskers, Jo W. Spronck, and Robert H. Munnig Schmidt  »View Author Affiliations


Optics Letters, Vol. 36, Issue 18, pp. 3584-3586 (2011)
http://dx.doi.org/10.1364/OL.36.003584


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Abstract

Displacement interferometry is widely used for accurately characterizing nanometer and subnanometer displacements in many applications. In many modern systems, fiber delivery is desired to limit optical alignment and remove heat sources from the system, but fiber delivery can exacerbate common interferometric measurement problems, such as periodic nonlinearity, and account for fiber-induced drift. In this Letter, we describe a novel, general Joo-type interferometer that inherently has an optical reference after any fiber delivery that eliminates fiber-induced drift. This interferometer demonstrated no detectable periodic nonlinearity in both free-space and fiber-delivered variants.

© 2011 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(120.4820) Instrumentation, measurement, and metrology : Optical systems

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: June 20, 2011
Revised Manuscript: August 3, 2011
Manuscript Accepted: August 18, 2011
Published: September 12, 2011

Citation
Jonathan D. Ellis, Arjan J. H. Meskers, Jo W. Spronck, and Robert H. Munnig Schmidt, "Fiber-coupled displacement interferometry without periodic nonlinearity," Opt. Lett. 36, 3584-3586 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-18-3584

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