Temporal characterization of two-octave infrared pulses by frequency resolved optical switching
| Autor: | Antoine Laramée, Adrien Longa, Philippe Lassonde, Heide Ibrahim, A. Leblanc, Mayank Kumar, François Légaré, Charles Dansereau |
|---|---|
| Přispěvatelé: | Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Énergie Matériaux Télécommunications - INRS (EMT-INRS), Institut National de la Recherche Scientifique [Québec] (INRS)-Université du Québec à Montréal = University of Québec in Montréal (UQAM) |
| Rok vydání: | 2021 |
| Předmět: |
Infrared
infrared pulse Physics::Optics 02 engineering and technology Octave (electronics) 01 natural sciences Optical switch 010309 optics Optics 0103 physical sciences Electrical and Electronic Engineering Physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry 021001 nanoscience & nanotechnology Optical parametric amplifier optical parametric amplifier Atomic and Molecular Physics and Optics few-cycle pulse Electronic Optical and Magnetic Materials Supercontinuum Characterization (materials science) temporal characterization supercontinuum 0210 nano-technology business |
| Zdroj: | Journal of Physics: Photonics Journal of Physics: Photonics, IOP Science, 2021, 3 (4), pp.045002. ⟨10.1088/2515-7647/ac184f⟩ |
| ISSN: | 2515-7647 |
| DOI: | 10.1088/2515-7647/ac184f |
| Popis: | We present the temporal characterization of infrared pulses with spectra extending from 0.55 to 2.5 μm by using the frequency resolved optical switching (FROSt) technique. The pulses are obtained by broadening femtosecond pulses at 1.75 μm central wavelength in a two-stage hollow core fiber setup. This work demonstrates the capability of the FROSt technique to temporally characterize pulses with ultra-broadband spectra. Being free of phase-matching constraints, it enables the characterization of pulses with very low energy at the limit of the detection threshold and with arbitrary long pulse duration. This strength of the FROSt technique is illustrated by the characterization of supercontinua pulses whose spectra span over two octaves and with only 150 nJ energy that is spread temporally over almost 40 ps. The FROSt capabilities provide a versatile tool for the characterization of sub-cycle pulses and to study nonlinear processes such as supercontinuum generation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|