Moment-based description for assumption-free single-shot measurement of femtosecond laser pulse parameters via two-photon-induced photocurrents

Autor: Sylvain Rivet, Laurent Sarger, Lionel Canioni, Eric R. Tkaczyk, Stéphane Santran
Přispěvatelé: Laboratoire de Spectrométrie et Optique Laser (LSOL), Université de Brest (UBO)-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Centre de physique moléculaire optique et hertzienne (CPMOH), Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: 2006 Northern Optics Conference Proceedings
2006 Northern Optics Conference Proceedings, Jun 2006, Bergen, Norway. pp.67-+, ⟨10.1109/no.2006.348376⟩
DOI: 10.1109/no.2006.348376⟩
Popis: By examining the first- and second-order moments of intensity with respect to time and frequency, we arrive at a temporal characterization of laser pulses through parameters for pulse duration, group delay dispersion and temporal form. These parameters, which are sufficient to predict subsequent pulse behavior, are recoverable in a simple experiment, measuring the two-photon-induced photocurrents in three nonlinear diodes. With only two photodiodes, we demonstrate that pulse durations as low as several tens of femtoseconds can be easily measured in a single shot, if the usual assumptions of pulse form and dispersion are made as in the more difficult autocorrelation setup.
Databáze: OpenAIRE