PhD Alumni

Lucerna Diego

Present position: Customer Support Optical Engineer presso Huawei

Thesis title:  Systems of optical interconnections
Advisor:  Achille Pattavina
Research area:  Networks
Thesis abstract:  
Nowadays, thanks to the utilization of Raman fiber amplifiers that are being employed in addition to the early erbium-doped fiber amplifiers, of new fibers, of new techniques for broadband dispersion compensation and broadband dispersion management, the potential bit-rate per WDM channel has increased to 40Gb/s and higher.

Unfortunately, the capability of switching and routing will never been able to support the perspective spectacular improvement on transmission capability if it will be still implemented using only the convectional hard-wired architecture. To address the imminent hard-wired bottleneck problem, the development of an alterative data transmission technology that can replace the conventional method is urgently needed.

Short-haul optical interconnection is the most promising candidate for providing a solution for hard-wired deadlock. In terms of linkages using optical means, optical fiber communication has been in practical use for more than 20/30 years, mainly for long distance links between cities and continents. However, as the problem associated with hard-wired links become more apparent, this approach is gathering new attention.

Therefore, this dissertation deals with the topic of optical interconnections with aim of seeking new architectures an subsystems to be adopted at multiple hierarchic levels of a WDM network: in part I we focus on long-haul or local-area optical scenarios characterized by kilometric distances between devices; in part II we study the innovative optical interconnection scenarios on uncommon optical distances “inside the box' (in the order of meters/centimetres), i.e., to implement rack-to-rack and backplane connections.