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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 12 — Jun. 15, 2010
  • pp: 1971–1973

Resolution of the relative phase ambiguity in spectral shearing interferometry of ultrashort pulses

Dane R. Austin, Tobias Witting, and Ian A. Walmsley  »View Author Affiliations


Optics Letters, Vol. 35, Issue 12, pp. 1971-1973 (2010)
http://dx.doi.org/10.1364/OL.35.001971


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Abstract

We show that multiple-shear spectral shearing interferometry can overcome the relative phase ambiguity of disjoint spectral components that is present in single-shear approaches. By upconverting the unknown pulse with spatially chirped ancillae, we achieve a shear-to-space mapping that can be acquired on an imaging spectrometer. A subset of this continuous range of shears can be chosen for robust and accurate phase retrieval using a multiple-shear algorithm.

© 2010 Optical Society of America

OCIS Codes
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: March 1, 2010
Manuscript Accepted: May 5, 2010
Published: June 4, 2010

Citation
Dane R. Austin, Tobias Witting, and Ian A. Walmsley, "Resolution of the relative phase ambiguity in spectral shearing interferometry of ultrashort pulses," Opt. Lett. 35, 1971-1973 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-12-1971


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