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Optics Letters

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  • Vol. 20, Iss. 5 — Mar. 1, 1995
  • pp: 486–488

Ultrashort-pulse measurement using noninstantaneous nonlinearities: Raman effects in frequency-resolved optical gating

Kenneth W. DeLong, Celso L. Ladera, Rick Trebino, Bern Kohler, and Kent R. Wilson  »View Author Affiliations


Optics Letters, Vol. 20, Issue 5, pp. 486-488 (1995)
http://dx.doi.org/10.1364/OL.20.000486


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Abstract

Ultrashort-pulse-characterization techniques generally require instantaneously responding media. We show that this is not the case for frequency-resolved optical gating (FROG). We include, as an example, the noninstantaneous Raman response of fused silica, which can cause errors in the retrieved pulse width of as much as 8% for a 25-fs pulse in polarization-gate FROG. We present a modified pulse-retrieval algorithm that deconvolves such slow effects and use it to retrieve pulses of any width. In experiments with 45-fs pulses this algorithm achieved better convergence and yielded a shorter pulse than previous FROG algorithms.

© 1995 Optical Society of America

History
Original Manuscript: October 31, 1994
Published: March 1, 1995

Citation
Kenneth W. DeLong, Bern Kohler, Kent R. Wilson, Celso L. Ladera, and Rick Trebino, "Ultrashort-pulse measurement using noninstantaneous nonlinearities: Raman effects in frequency-resolved optical gating," Opt. Lett. 20, 486-488 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-5-486


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