A5043967262- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Physical Unclonable Functions (PUFs) and Hardware Security
- Advanced Optical Network Technologies
- Biometric Identification and Security
- Advanced Steganography and Watermarking Techniques
- Semiconductor Lasers and Optical Devices
- graph theory and CDMA systems
- Integrated Circuits and Semiconductor Failure Analysis
- Advanced Fiber Laser Technologies
- Digital Media Forensic Detection
- Software-Defined Networks and 5G
- Multimedia Communication and Technology
- Electrowetting and Microfluidic Technologies
- Ocular and Laser Science Research
- Photonic Crystals and Applications
- Video Coding and Compression Technologies
- Optical Coatings and Gratings
- Nonlinear Optical Materials Studies
- Interconnection Networks and Systems
- Acoustic Wave Resonator Technologies
- Silicon Nanostructures and Photoluminescence
- IoT and Edge/Fog Computing
- Gyrotron and Vacuum Electronics Research
Scuola Superiore Sant'Anna
2018-2025
Consorzio Nazionale Interuniversitario per le Telecomunicazioni
2023
University of Pisa
2019-2020
University of Genoa
2012
In this work, the concept of optical identification (OI) based on physical unclonable functions is introduced for first time, to our knowledge, in communication systems and networks. The OI assigns an fingerprint corresponding digital representation each sub-system network estimates its reliability different measures. We highlight large potential applications as a layer approach security, identification, authentication, monitoring purposes. To identify most sub-systems network, we propose...
The concept of multi-homodyne coherent detection is used for stealth and secured optical communications, demonstrating a transmission rate 20 Gbps under negative (in dB) signal-to-noise ratio (OSNR), in deployed multi-core fiber (MCF) network. A 10 GBd QPSK signal assigned with bandwidth multi-hundreds GHz, optically encoded spectral phase mask, transmitted below ASE noise the MCF channel. To enable such scheme, semiconductor based gain-switched laser (GSL) frequency comb, as both carrier...
We introduce a technique to generate and read the digital signature of networks, channels, optical devices that possess fiber-optic pigtails enhance physical layer security (PLS). Attributing networks or eases identification authentication systems thus reducing their vulnerability attacks. The signatures are generated using an unclonable function (OPUF). Considering OPUFs established as most potent anti-counterfeiting tool, created robust against malicious attacks such tampering cyber...
Abstract In this work, both light‐shaping and image magnification features are integrated into a single lens element using moldless procedure that takes advantage of the physical optical properties mesoporous silicon (PSi) photonic crystal nanostructures. Casting liquid poly(dimethylsiloxane) pre‐polymer solution onto PSi film generates droplet with contact angle is readily controlled by nanostructure, adhesion cured polymer to allows preparation lightweight (10 mg) freestanding lenses (4.7...
A novel all-optical stealth and secured transmission is proposed demonstrated. Spectral replicas of the covert signal are carried by multiple tones a gain switched optical frequency comb, optically coded with spectral phase mask, concealed below EDFA's noise. The signal's spectrum spread far beyond bandwidth coherent receiver, thus forcing real time processing. An unauthorized user, who does not possess knowledge on can only obtain noisy distorted signal, that cannot be improved...
A stealthy and encrypted transmission is demonstrated in a dense-WDM network. The residual gap between two neighboring commercial channels utilized for the of secured channel, hidden below amplifier noise at negative -10 dB/0.1nm OSNR. channel generated by digital replication baseband signal together with spectral phase mask. This technique provides encryption steganography as it exclusively allows eligible user to obtain considerable processing-gain, recover extremely low OSNR signals. In...
The role of a semiconductor optical amplifier (SOA) for amplifying downstream traffic at network terminals (ONT) within silicon-photonics integrated receiver in high capacity passive (PON) is investigated. nearly traveling wave SOA effects are evaluated by considering fabrication and link loss constraints through numerical analysis experimental validation. impact hybrid integration chip on silicon insulator (SOI) photonic using the flip bonding technique design multi section cavity model....
SOA gain blocks are enabling components to realize lossless mini-ROADMs based fronthaul optical access ring networks. The impact of cascaded SOAs on WDM (12X25Gb/s) signal quality is investigated through simulation modelling and experimental validation.
A YANG model for multi-band amplifiers is proposed. Thulium Doped Fiber Amplifier (TDFA) characterization performed, then automated control configuring TDFA based on traffic load and C+S transmission are experimentally demonstrated.
We propose a novel technique for user authentication in fiber-based quantum key distribution systems. Practical implementation using coherent optical frequency-domain reflectometry is described and security assessed.
We introduce the concept of optical fingerprint in communications and networks. In assumption being able to read devices', sub-systems', systems' fingerprint, a new model is proposed order address services including security, authentication, identification, monitoring.
Multi-band transmission is attracting the interest of research community because its prospects to increase network infrastructures life. Indeed, current deployed systems mainly exploit C band, thus fibers can still offer a wide range available spectrum. In this paper, quality (QoT) estimation considered as fundamental control step for light path setup in order check proper feasibility along computed path. We demonstrate multi-band networking with channels on and S bands testbed including...
We propose a new method for network authentication, identification, and secure communication, using the optical physical unclonable function Challenge-Response (PUF-CRPs) database protocol. investigated performance generated with proposed protocol by identifying 150 networks ID. Different methods strategies generating exerting PUF-based CRP databases are numerically validated. The may find applications identification security different architectures.
We propose a coherent transceiver architecture able to transmit information and enhance the security of optical network by identifying other systems subsystems. Simulations show that identification is obtained with sufficient reliability in standard operating conditions.
A 4-channel IQ receiver array with individual optical inputs has been fully packaged in an optoelectronic assembly including RF Rogers PCB, Alumina PCB as fanout and photonic wire bonds for coupling fiber arrays.BER performance demonstrates potential 240Gbps aggregated data rate.
We proposed a new method for the rate loss reduction in hierarchical distribution matching (Hi-DM) approach constellation shaping. This makes Hi-DM comparable with enumerative sphere shaping (ESS) approach, at short block length, terms of loss.
Horseshoe filterless metro network is designed and experimentally validated for bidirectional transmission over a single fiber. Transmission impairments, dominated by in-band crosstalk, are specifically assessed, leading to extremely good performance when misalignment in spectrum allocation configured among the two directions.
We analyze cost and energy efficient self-homodyne coherent detection transmission system for short reach, high capacity 5G links. 28Gbaud DP-16QAM is demonstrated employing coded spectral shaping at transmitter carrier extractor the receiver.