Practical advances in ultrashort-pulse measurement using frequency-resolved optical gating

David N. Fittinghoff; Rick P. Trebino; Jason Bowie; John N. Sweetser; Marco A. Krumbeugel; Kenneth W. DeLong; Ian A. Walmsley

doi:10.1117/12.239700

8 May 1996 Practical advances in ultrashort-pulse measurement using frequency-resolved optical gating

David N. Fittinghoff, Rick P. Trebino, Jason Bowie, John N. Sweetser, Marco A. Krumbeugel, Kenneth W. DeLong, Ian A. Walmsley

Author Affiliations +

Proceedings Volume 2701, Generation, Amplification, and Measurement of Ultrashort Laser Pulses III; (1996) https://doi.org/10.1117/12.239700
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

We extend the Frequency-Resolved Optical Gating (FROG) technique to the measurement of the time-dependent intensity and phase of arbitrary ultraweak ultrashort pulses. We accomplish this by combining FROG with spectral interferometry. Spectral interferometry (SI) yields the phase difference between an unknown and a known pulse (the latter characterized with FROG). SI is a linear-optical method and hence is very sensitive. We demonstrate the combination of these two techniques by measuring the intensity and phase of a train of pulses 42 zeptojoules in energy (1/5 of a photon per pulse).

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David N. Fittinghoff, Rick P. Trebino, Jason Bowie, John N. Sweetser, Marco A. Krumbeugel, Kenneth W. DeLong, and Ian A. Walmsley "Practical advances in ultrashort-pulse measurement using frequency-resolved optical gating", Proc. SPIE 2701, Generation, Amplification, and Measurement of Ultrashort Laser Pulses III, (8 May 1996); https://doi.org/10.1117/12.239700

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