title: Single-shot photonic time-intensity integration based on a time-spectrum convolution system.
abstract: Real-time and single-shot ultra-fast photonic time-intensity integration of arbitrary temporal waveforms is proposed and demonstrated. The intensity-integration concept is based on a time-spectrum convolution system, where the use of a multi-wavelength laser with a flat envelope, employed as the incoherent broadband source, enables single-shot operation. The experimental implementation is based on optical intensity modulation of the multi-wavelength laser with the input waveform, followed by linear dispersion. In particular, photonic temporal intensity integration with a processing bandwidth of 36.8 GHz over an integration time window of 1.24 ns is verified by experimentally measuring the integration of an ultra-short microwave pulse and an arbitrary microwave waveform.
authors.affiliation: Institut National de la Recherche Scientifique—Énergie, Matériaux et Télécommunications (INRS-EMT), Varennes, Québec J3X 1S2, Canada. antonio.malacarne@ircphonet.it
authors.forename: Antonio
authors.initials: A
authors.lastname: Malacarne
authors.forename: Reza
authors.initials: R
authors.lastname: Ashrafi
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Sophie
authors.initials: S
authors.lastname: LaRochelle
authors.forename: Jianping
authors.initials: J
authors.lastname: Yao
authors.forename: José
authors.initials: J
authors.lastname: Azaña