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Universidade Estadual Paulista (UNESP). Campus Experimental São João da Boa Vista. Faculdade de Engenharia (Institutional affiliation from the last research proposal) Birthplace: Espanha
Ivan Aritz Aldaya Garde in research grants and scholarships supported by FAPESP.
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Optical communication systems have continuously evolved to support the demand for increasing transmission capacity. The introduction of digital coherent systems represented a revolution since they allowed the exploitation of not only the amplitude but also the phase and polarization diversity of the light. In addition to the use of additional dimensions, digital coherent systems paved the…
Digital coherent optical communication systems have revolutionized the design of optical networks, particularly through the adoption of advanced modulation formats and the efficient compensation of impairments. These innovations enable the achievement of unprecedented spectral efficiencies. However, the combination of additive noise and nonlinear distortions remains one of the main limiti…
With the increase in internet data transmission rates, coherent digital optical systems have needed optimization to achieve better performance. Nonlinear effects, such as the Kerr effect in fiber, are the main limiting factors in these systems, and over the years, various tools have been developed to mitigate these effects. Artificial neural networks (ANNs) have emerged as an attractive m…
Distributed acoustic sensors (DASs) based on optical fibers have been claimed as one of the key enabling technologies for real-time spatiotemporal monitoring of car traffic, a crucial aspect of smart city implementation. With the technological issues of the physical layout elegantly solved using coherent processing, the signal processing of a large amount of generated data became a challe…
The need for greater data transmission capacity on the Internet can be alleviated with the deployment of infrastructures based on optical fibers. Optical fibers have a high link length per bandwidth product, but still require the use of optical amplifiers, essential devices in lightwave systems, to achieve the desired lengths. One such device is the erbium-doped fiber amplifier, which pla…
This research project has as its main objective to analyze the effect of beam steering in sparse antenna arrangements, whose elements are arranged according to Fermat's spiral. We study the behavior of antennas and their parameters, as well as the radiation diagram considering the beam steering, and the focus of this work will be the optical antennas that currently stand out due to their …
Traditional on-off-keying (OOK)-based optical communications systems have met data transmission capacity requirements over a long period of time. However, they fail to meet the ever increasing capacity requirements. The present project aims to evaluate polarisation modulation, also known as Stokes space modulation, to increase spectral efficiency in optical communications. In particular, …
(Only some records are available in English at this moment)
| 1 / 1 | Ongoing grants |
| 1 / 1 | Completed research grants |
| 3 / 3 | Ongoing scholarships in Brazil |
| 5 / 5 | Completed scholarships in Brazil |
| 10 / 10 | All research grants and scholarships |
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