Seminar Announcement: Damiano Massella

Data pubblicazione: 08-dic-2021


Monday, 20 December 2021, 16:30

Sala Grande Palazzina B via alla Cascata 56/C

"Generic integrated photonics for quantum key distribution"

Damiano Massella

University of Vigo, EI Telecomunicacion,

Campus Universitario As Lagoas,

36310, Vigo, Spain



Quantum key distribution (QKD) represents the next step in secure communications and it is rapidly moving from lab to commercial available products. In recent years the use of optically injected lasers has been proved to be a valid way to build a QKD transmitter [1]. This kind of system require high stability and low noise level to be able to perform correctly, for this reason the integration of such systems on a chip is considered the next step in the development of the technology. Generic photonic integration represents an available way to integrate all the required functionalities and improve the system performance [2].

In this presentation I will introduce the basic concepts behind generic photonic integration and the industrial ecosystem around it. The design workflow and the developed tools necessary for predicting the performance of such integrated circuits will be discussed and analysed. Subsequently I will guide you through the results of our simulation and the details on the chip under production at this moment.

[1] Z. L. Yuan, B. Fröhlich, M. Lucamarini, G. L. Roberts, J. F. Dynes, and A. J. Shields. Directly Phase-Modulated Light Source. Physical Review X, 6(3):031044, September 2016

[2] K. A. Williams, E. A. J. M. Bente, D. Heiss, Y. Jiao, K. Ławniczuk, X. J. M. Leijtens, J. J. G. M. van der Tol, and M. K. Smit, "InP photonic circuits using generic integration [Invited]," Photon. Res. 3, B60-B68 (2015)