Rius Mercado, Manuel; Bolea Boluda, Mario; Mora Almerich, José; Capmany Francoy, José(Institute of Electrical and Electronics Engineers (IEEE), 2016-11-01)
In this letter, we present a high-order impulseradio ultra-wideband (UWB) pulses generator based on the processing of incoherent optical signals by a dispersive element. The full waveform reconfigurability is achieved by ...
Martínez-Carrasco, Pablo; Huy-Ho, Tan; Capmany Francoy, José(Institute of Electrical and Electronics Engineers, 2024-07-15)
[EN] In this work we present an automatic calibration technique for switched Optical True Time Delay Lines which allows the control of all of the switchers without relaying on intermediate attenuators nor external test ...
Nazemosadat, Elham; Herranz Herruzo, José Ignacio; Gasulla Mestre, Ivana(Institute of Electrical and Electronics Engineers, 2023-11-01)
[EN] We present, for the first time to our knowledge, experimental demonstration of tunable optical beamforming for phased array antennas using a few-mode fiber. The double-clad step-index few-mode fiber is dispersion ...
Nazemosadat, Elham; Gasulla Mestre, Ivana(Institute of Electrical and Electronics Engineers, 2022-10-01)
[EN] We experimentally demonstrate, for the first-time to our knowledge, tunable true-time delay line operation over a few-mode fiber link, in which the time delay can be continuously and widely tuned, from 46.3 to 105.6 ...
Maldonado-Hurtado, Daniel Gustavo; Llera, Miguel; Flahaut, Frédéric; Benoit, Justin; Barrera Vilar, David(Institute of Electrical and Electronics Engineers, 2024-03-01)
[EN] An elastomeric optical fiber core was fabricated by drawing a 1160-D thermoplastic polyurethane preform. The cut-back technique was used to measure fiber attenuation for a light spectrum ranging from 550 nm to 875 nm, ...