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Pulse characterization by cascading nonlinearity inside a spectrometer (CaNIS)
Author(s): Ning Hsu; Luke Horstman; Jean-Claude Diels
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Paper Abstract

A complete ultrashort pulse diagnostic requires a linear spectrum associated with a nonlinear autocorrelation or interferometric measurement. A new method is presented requiring only a grating spectrometer and two second harmonic crystals. Spectra of fundamental, second harmonic, and two cascaded spectra are used to reconstruct the spectral phase. A few proof-of-concept examples with simple phases are demonstrated using Nelder-Mead algorithm. A differential evolution genetic algorithm is introduced when the pulse has a more complicated shape or phase.

Paper Details

Date Published: 23 February 2018
PDF: 12 pages
Proc. SPIE 10517, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications III, 105170M (23 February 2018); doi: 10.1117/12.2290848
Show Author Affiliations
Ning Hsu, The Univ. of New Mexico (United States)
Luke Horstman, The Univ. of New Mexico (United States)
Jean-Claude Diels, The Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 10517:
Real-time Measurements, Rogue Phenomena, and Single-Shot Applications III
Bahram Jalali; Daniel R. Solli; Günter Steinmeyer, Editor(s)

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