Single-shot frequency-resolved optical gating for retrieving the pulse shape of high energy picosecond pulses

Single-shot frequency-resolved optical gating for retrieving the pulse shape of high energy picosecond pulses

Accurate characterization of laser pulses used in experiments is a crucial step to the analysis of their results. In this paper, a novel single-shot frequency-resolved optical gating (FROG) device is described, one that incorporates a dispersive element which allows it to fully characterize pulses u...

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Bibliographic Details
Main Authors: Aboushelbaya, R, Savin, A, Ceurvorst, L, Sadler, J, Norreys, P, Davies, A, Froula, D, Boyle, A, Galimberti, M, Oliveira, P, Parry, B, Katzir, Y, Glize, K
Format: Journal article
Published: AIP Publishing 2018
Description
Summary:Accurate characterization of laser pulses used in experiments is a crucial step to the analysis of their results. In this paper, a novel single-shot frequency-resolved optical gating (FROG) device is described, one that incorporates a dispersive element which allows it to fully characterize pulses up to 25 ps in duration with a 65 fs per pixel temporal resolution. A newly developed phase retrieval routine based on memetic algorithms is implemented and shown to circumvent the stagnation problem that often occurs with traditional FROG analysis programs when they encounter a local minimum.

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