Zobrazeno 1 - 10
of 525
pro vyhledávání: '"P. Gioannini"'
Autor:
Rimoldi, Cristina, Columbo, Lorenzo L., Tibaldi, Alberto, Debernardi, Pierluigi, García, Sebastian Romero, Raabe, Christian, Gioannini, Mariangela
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics, vol. 31, no. 2: Pwr. and Effic. Scaling in Semiconductor Lasers, pp. 1-13, March-April 2025, Art no. 1700113
We study the dynamical behavior of medium-size multimode VCSELs with an elliptical oxide aperture, selected for the best trade-off between high output power and modulation speed for datacom applications, with a focus on their relative intensity noise
Externí odkaz:
http://arxiv.org/abs/2407.11899
Autor:
Martino D'Alessandro, Valerio Torrelli, Francesco Bertazzi, Michele Goano, Nikolay N. Ledentsov, Markus Lindemann, Mariangela Gioannini, Pierluigi Debernardi, Alberto Tibaldi
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-7 (2024)
In this work we investigate the ultrabroadband dynamics of transverse coupled cavity VCSELs. This study is based on a multimode rate equation model, whose parameters are directly provided by a full-wave vectorial electromagnetic solver. This approach
Externí odkaz:
https://doaj.org/article/7c0c403be8544214bc4630af2338497e
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-9 (2024)
In this article, we use a time-domain traveling-wave approach with a coupled-mode theory to describe the dynamics of a mid-Infrared (MIR) Quantum Cascade Laser (QCL) in the Distributed-Feedback (DFB) configuration. We demonstrate that linewidth enhan
Externí odkaz:
https://doaj.org/article/b643bf8d93084ae2ba8f2b9b8e76be97
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-5 (2024)
We analyze the emergence of optical frequency combs in a III-V SiN hybrid laser. Our model accounts for the narrow band effective mirror reflectivity and allows to simulate laser dynamics as a function of the bias current and the detuning of the lasi
Externí odkaz:
https://doaj.org/article/88027094eea84ad79477422b247c0e64
Publikováno v:
Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing: System Demonstrations (2020) 40-46
Statistical significance testing centered on p-values is commonly used to compare NLP system performance, but p-values alone are insufficient because statistical significance differs from practical significance. The latter can be measured by estimati
Externí odkaz:
http://arxiv.org/abs/2011.13231
Autor:
Columbo, L., Piccardo, M., Prati, F., Lugiato, L. A., Brambilla, M., Gatti, A., Silvestri, C., Gioannini, M., Opacak, N., Schwarz, B., Capasso, F.
Publikováno v:
Phys. Rev. Lett. 126, 173903 (2021)
Frequency combs have become a prominent research area in optics. Of particular interest as integrated comb technology are chip-scale sources, such as semiconductor lasers and microresonators, which consist of resonators embedding a nonlinear medium e
Externí odkaz:
http://arxiv.org/abs/2007.07533
We cast a theoretical model based on Effective Semiconductor Maxwell-Bloch Equations and study the dynamics of a multi-mode mid-Infrared Quantum Cascade Laser in Fabry Perot with the aim to investigate the spontaneous generation of optical frequency
Externí odkaz:
http://arxiv.org/abs/2004.13808
Publikováno v:
Journal of Selected Topics in Quantum Electronics, 2019
By applying a coupled-Bloch-mode approach, we have derived a simple expression for the transmission properties of photonic crystal (PhC) line-defect waveguides with a complex refractive index perturbation. We have provided physical insights on the co
Externí odkaz:
http://arxiv.org/abs/1906.04058
A coupled Bloch-wave approach is employed to analyze active photonic-crystal (PhC) waveguides and cavities. Gain couples the otherwise independent counter-propagating Bloch modes. This coupling is shown to limit the maximum attainable slow-light enha
Externí odkaz:
http://arxiv.org/abs/1906.03638
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