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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 9 — Apr. 25, 2011
  • pp: 8117–8126

Phase-sensitive swept-source interferometry for absolute ranging with application to measurements of group refractive index and thickness

Eric D. Moore and Robert R. McLeod  »View Author Affiliations


Optics Express, Vol. 19, Issue 9, pp. 8117-8126 (2011)
http://dx.doi.org/10.1364/OE.19.008117


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Abstract

Interferometric range measurements using a wavelength-tunable source form the basis of several measurement techniques, including optical frequency domain reflectometry (OFDR), swept-source optical coherence tomography (SS-OCT), and frequency-modulated continuous wave (FMCW) lidar. We present a phase-sensitive and self-referenced approach to swept-source interferometry that yields absolute range measurements with axial precision three orders of magnitude better than the transform-limited axial resolution of the system. As an example application, we implement the proposed method for a simultaneous measurement of group refractive index and thickness of an optical glass sample.

© 2011 OSA

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(120.1840) Instrumentation, measurement, and metrology : Densitometers, reflectometers
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(280.3400) Remote sensing and sensors : Laser range finder
(290.3030) Scattering : Index measurements

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: January 20, 2011
Revised Manuscript: March 25, 2011
Manuscript Accepted: March 29, 2011
Published: April 13, 2011

Virtual Issues
Vol. 6, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Eric D. Moore and Robert R. McLeod, "Phase-sensitive swept-source interferometry for absolute ranging with application to measurements of group refractive index and thickness," Opt. Express 19, 8117-8126 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-9-8117


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