Double-pulse characterization by self-referenced spectral interferometry

L.  Gulyás Oldal; T. Csizmadia; P. Ye; N. G. Harshitha; M. Füle; A. Zaïr

doi:10.1063/1.5089959

Double-pulse characterization by self-referenced spectral interferometry

L. Gulyás Oldal, T. Csizmadia , P. Ye, N. G. Harshitha, M. Füle, A. Zaïr

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Abstract

The reconstruction of ultrashort optical pulses with a complex intensity substructure is demonstrated using the Self-Referenced Spectral Interferometry (SRSI) pulse characterization technique with a modified phase retrieval algorithm. A correction spectral phase term is extracted by the manipulation of the temporal interferogram, allowing the treatment of scenarios with complicated pulse shapes, where the original algorithm fails. The improved SRSI algorithm is verified through the application on two temporally well-separated pulses having the same polarization direction and spectral shape, generated by duplicating 37 fs-long amplified pulses of a Ti:Sa based laser system. The spectral phase of highly chirped double pulses with equal or different amplitude ratios is numerically retrieved. The collinear and achromatic experimental arrangement results in a compact and easy-to-align system.

Original language	English
Article number	051106
Journal	APPLIED PHYSICS LETTERS
Volume	115
Issue number	5
Early online date	31 Jul 2019
DOIs	https://doi.org/10.1063/1.5089959
Publication status	E-pub ahead of print - 31 Jul 2019

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10.1063/1.5089959

Double-pulse characterization by_OLDAL_Accepted12July2019Publishedonline31July2019_GREEN AAMAccepted author manuscript, 1.13 MB
Double-pulse characterization by_OLDAL_Accepted12July2019Publishedonline31July2019_GREEN VoRFinal published version, 2.27 MB

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title = "Double-pulse characterization by self-referenced spectral interferometry",

abstract = "The reconstruction of ultrashort optical pulses with a complex intensity substructure is demonstrated using the Self-Referenced Spectral Interferometry (SRSI) pulse characterization technique with a modified phase retrieval algorithm. A correction spectral phase term is extracted by the manipulation of the temporal interferogram, allowing the treatment of scenarios with complicated pulse shapes, where the original algorithm fails. The improved SRSI algorithm is verified through the application on two temporally well-separated pulses having the same polarization direction and spectral shape, generated by duplicating 37 fs-long amplified pulses of a Ti:Sa based laser system. The spectral phase of highly chirped double pulses with equal or different amplitude ratios is numerically retrieved. The collinear and achromatic experimental arrangement results in a compact and easy-to-align system.",

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AU - Gulyás Oldal, L.

AU - Csizmadia , T.

AU - Ye, P.

AU - Harshitha, N. G.

AU - Füle, M.

AU - Zaïr, A.

PY - 2019/7/31

Y1 - 2019/7/31

N2 - The reconstruction of ultrashort optical pulses with a complex intensity substructure is demonstrated using the Self-Referenced Spectral Interferometry (SRSI) pulse characterization technique with a modified phase retrieval algorithm. A correction spectral phase term is extracted by the manipulation of the temporal interferogram, allowing the treatment of scenarios with complicated pulse shapes, where the original algorithm fails. The improved SRSI algorithm is verified through the application on two temporally well-separated pulses having the same polarization direction and spectral shape, generated by duplicating 37 fs-long amplified pulses of a Ti:Sa based laser system. The spectral phase of highly chirped double pulses with equal or different amplitude ratios is numerically retrieved. The collinear and achromatic experimental arrangement results in a compact and easy-to-align system.

AB - The reconstruction of ultrashort optical pulses with a complex intensity substructure is demonstrated using the Self-Referenced Spectral Interferometry (SRSI) pulse characterization technique with a modified phase retrieval algorithm. A correction spectral phase term is extracted by the manipulation of the temporal interferogram, allowing the treatment of scenarios with complicated pulse shapes, where the original algorithm fails. The improved SRSI algorithm is verified through the application on two temporally well-separated pulses having the same polarization direction and spectral shape, generated by duplicating 37 fs-long amplified pulses of a Ti:Sa based laser system. The spectral phase of highly chirped double pulses with equal or different amplitude ratios is numerically retrieved. The collinear and achromatic experimental arrangement results in a compact and easy-to-align system.

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Double-pulse characterization by self-referenced spectral interferometry

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