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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 21 — Nov. 1, 2006
  • pp: 3098–3100

Spectrally resolved phase-shifting interferometry for accurate group-velocity dispersion measurements

Sanjit K. Debnath, Nirmal K. Viswanathan, and Mahendra P. Kothiyal  »View Author Affiliations

Optics Letters, Vol. 31, Issue 21, pp. 3098-3100 (2006)

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We report an accurate method to measure the group-velocity dispersion (GVD) of transparent materials by use of spectrally resolved phase-shifting interferometry. The GVD of silica glass slide measured using an eight-step phase-shifting algorithm agrees well with that calculated using the Sellmeier dispersion equation over the entire visible wavelength region, with a rms error of 0.0036 μ m 2 , better than that of other measurement methods reported so far.

© 2006 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(260.2030) Physical optics : Dispersion

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: June 22, 2006
Revised Manuscript: July 31, 2006
Manuscript Accepted: August 5, 2006
Published: October 11, 2006

Sanjit K. Debnath, Nirmal K. Viswanathan, and Mahendra P. Kothiyal, "Spectrally resolved phase-shifting interferometry for accurate group-velocity dispersion measurements," Opt. Lett. 31, 3098-3100 (2006)

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