J. Nanni, Giada Saderi, Gaetano Bellanca, G. Bosi, A. Raffo, V. Vadalà, P. Debernardi, J. Polleux, G. Tartarini
{"title":"Exploitability of Butt-Coupling between Single Mode/Multi Mode VCSEL and G.652 SSMF for future Green Radio-over-Fiber Infrastructures","authors":"J. Nanni, Giada Saderi, Gaetano Bellanca, G. Bosi, A. Raffo, V. Vadalà, P. Debernardi, J. Polleux, G. Tartarini","doi":"10.1109/ICOP56156.2022.9911758","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911758","url":null,"abstract":"Green and low-cost radio-over-fiber infrastructures for the capillary distribution of millimeter-wave signals can straightforwardly be developed through the use of low-consumption devices and the re-use of current deployed fibers. In particular, green infrastructures could be achieved by using Gallium-Arsenide Vertical Cavity Surface Emitting Lasers (VCSELs) operating around 850nm together with the standard G.652 fiber of 9-micron core diameter (SSMF) already installed inside building for providing internet connection via the Fiber-to-the-Home (FTTH) technology. In this context, the use of simple butt-coupling between VCSEL and SSMF is an attractive option in view of the targeted low-cost of the final system. However, all the commercial and currently available VCSELs are designed to be coupled with multimode fibers for short length datacom applications, and the coupling with SSMF is typically not optimized. In this work, we investigate the practicability of butt-coupling between high-performance multimode and singlemode VCSELs and SSMF, in view of 5G-and-beyond Radio over Fiber applications.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130835306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Innovative Optical System for Online Monitoring Sag, Rotation and Ice Accretion in HV Lines","authors":"D. Bartalesi, E. Golinelli, G. M. Ogliari","doi":"10.1109/ICOP56156.2022.9911757","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911757","url":null,"abstract":"An innovative optical system has been developed to increase the resilience of the electric grid monitoring sag, rotation and if present ice accretion of overhead power lines. Long duration test of the complete system in an environment close to a real installation and first measurements on snow sleeves have been carried out.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122333312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of a silicon subwavelength grating ring resonator as a refractometric sensor","authors":"F. Khozeymeh, F. Poli, M. Razaghi","doi":"10.1109/ICOP56156.2022.9911717","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911717","url":null,"abstract":"Silicon sub-wavelength grating ring resonators (SGRRs), based on the combination of gratings and ring resonators, enable to engineer the light guidance in a finer manner. These structures can be used as the building blocks in integrated optics and sensing platforms. In this work, we consider a SGRR operating at a wavelength of 1550 nm made with a Si core layer, with index 3.47, positioned on a SiO2 substrate with index 1.46. For the application as refractometric sensor, the air top cladding of the structure is replaced with aqueous solutions with refractive index values in the range 1.332-1.350. The described devices have been numerically studied using an axis-symmetric model, employing the eigenfrequency analysis of the COMSOL Multiphysics software. The refractive index (RI) sensitivity is calculated by taking into account the wavelength shift of four guided modes in the mentioned range of RI values. Results have demonstrated that the highest sensitivity of 12920 nm/RIU is found for the third mode of the device with an initial effective index of 1.7707. This demonstrates the excellent potential of the proposed SGRR in the early detection of the small amount of bio/chemical analytes in medicine, biology, and chemical applications.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"45 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116540827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Barucci, C. D'Andrea, Edoardo Farnesi, M. Banchelli, Chiara Amicucci, M. Angelis, C. Marzi, R. Pini, B. Hwang, P. Matteini
{"title":"A Machine Learning approach to the classification of chemo-structural determinants in label-free SERS detection of proteins","authors":"A. Barucci, C. D'Andrea, Edoardo Farnesi, M. Banchelli, Chiara Amicucci, M. Angelis, C. Marzi, R. Pini, B. Hwang, P. Matteini","doi":"10.1109/ICOP56156.2022.9911735","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911735","url":null,"abstract":"Establishing standardized methods for a consistent analysis of spectral data remains a largely underexplored aspect in surface-enhanced Raman spectroscopy (SERS), particularly applied to biological and bio-medical research. Here we propose a Machine Learning (ML) based approach for classification of protein species. Principal Component Analysis (PCA), t-distributed stochastic neighbour embedding (t-SNE) and Uniform Manifold Approximation and Projection (UMAP) where used for dimensionality reduction, along with supervised and unsupervised methods to quantify how closely resembled SERS spectral profiles belonging to different species (Albumin from bovine serum, Albumin from human serum, Lysozyme, Human holo-transferrin, Human apo-transferrin) are. In particular, ML algorithms such as Support Vector Machine, K-Nearest Neighbours, Linear Discriminant Analysis and the unsupervised K-means were applied to original and multipeak fitting on SERS spectra respectively. This strategy simultaneously assures a fast, full and successful discrimination of proteins and a thorough characterization of the chemo-structural differences among them, ultimately opening up new routes for SERS evolution toward sensing applications and diagnostics of interest in life sciences.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125436438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. A. Amirabadi, M. Kahaei, S. Nezamalhosseini, A. Carena
{"title":"Deep Learning Regression vs. Classification for QoT Estimation in SMF and FMF Links","authors":"M. A. Amirabadi, M. Kahaei, S. Nezamalhosseini, A. Carena","doi":"10.1109/ICOP56156.2022.9911716","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911716","url":null,"abstract":"We investigate deep learning-based regression and classification for quality of transmission estimation in single-mode and few-mode fiber links. Results show efficiency and low complexity in both methods, however, regression performs better and classification is faster.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114548773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Nanni, Enrico Lenzi, F. Perini, J. Monari, G. Tartarini
{"title":"Fiber-based Microwave Interferometer monitoring the Delay of Fiber-Optic Antenna Downlinks in Radioastronomic Scenarios","authors":"J. Nanni, Enrico Lenzi, F. Perini, J. Monari, G. Tartarini","doi":"10.1109/ICOP56156.2022.9911751","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911751","url":null,"abstract":"In large radioastronomic facilities, such as the Square Kilometre Array (SKA), where arrays of a great many antennas are connected to the processing station through optical fiber connections, the monitoring of the phase shift (or, equivalently, of the delay) induced to the transmitted signal by each optical link is crucial for the array calibration process. Indeed, these connections typically lie (partially or totally) in environments where climate/environmental agents can change the electromagnetic properties of the cable in a significant measure and in a different fashion between one fiber and the other, and this can therefore have a different impact on the value of phase shift (or delay) of each travelling signal. This paper proposes a simple and low-cost technique based on a microwave interferometer realized on optical fiber to monitor the delay introduced by the optical connections and its variations due to external climate agents.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121807217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniele Orsuti, C. Antonelli, A. Chiuso, M. Santagiustina, A. Mecozzi, A. Galtarossa, L. Palmieri
{"title":"Deep learning-based Phase Retrieval Scheme for Minimum Phase Signal Recovery","authors":"Daniele Orsuti, C. Antonelli, A. Chiuso, M. Santagiustina, A. Mecozzi, A. Galtarossa, L. Palmieri","doi":"10.1109/ICOP56156.2022.9911725","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911725","url":null,"abstract":"We propose a deep learning-based phase retrieval scheme to recover the phase of a minimum-phase signal after single-photodiode direct-detection. We show that, by properly generating the training data for the deep learning model, the proposed scheme can jointly perform full-field recovery and compensate for propagation-related linear and nonlinear impairments. Simulation results in relevant transmission system settings show that the proposed scheme relaxes the carrier-to-signal power ratio (CSPR) requirements by 2.8-dB and achieves 1.8-dB better receiver sensitivity while being on average 6 times computationally faster than the conventional 4-fold upsampled Kramers-Kronig receiver aided with digital-back-propagation.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"518 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116244795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Ferraro, F. Mangini, Yifan Sun, M. Zitelli, M. C. Crocco, Vincenzo Formoso, R. Agostino, R. Barberi, A. De Luca, A. Tonello, V. Couderc, S. Wabnitz
{"title":"Fiber Optics in the Multiphoton Ionization Regime","authors":"M. Ferraro, F. Mangini, Yifan Sun, M. Zitelli, M. C. Crocco, Vincenzo Formoso, R. Agostino, R. Barberi, A. De Luca, A. Tonello, V. Couderc, S. Wabnitz","doi":"10.1109/ICOP56156.2022.10044375","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.10044375","url":null,"abstract":"We investigate an extreme regime of nonlinear propagation in standard multimode optical fibers, where intense laser pulses trigger multiphoton ionization effects. These influence the dynamics of spatiotemporal solitons which are formed from the fission of input laser pulses. In particular, we observed a nonmonotonic Raman wavelength shift over a time scale of several hours. Moreover, the material ionization generates irreversible damages, which are visualized by means of optical microscopy and X-ray computed microtomography.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127643978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Khozeymeh, F. Melli, Sabrina Capodaglio, R. Corradini, F. Benabid, L. Vincetti, A. Cucinotta
{"title":"A microstructured fiber for streptavidin detection","authors":"F. Khozeymeh, F. Melli, Sabrina Capodaglio, R. Corradini, F. Benabid, L. Vincetti, A. Cucinotta","doi":"10.1109/ICOP56156.2022.9911720","DOIUrl":"https://doi.org/10.1109/ICOP56156.2022.9911720","url":null,"abstract":"The properties of the microstructured optical fibers (MOFs) make them a growing photonics sensing platform with a wide range of applications in medicine, biological, and chemical detection. Particularly in the detection of bio/chemical analytes using the MOFs, the main advantage is the integration of the optical transducer and fluidic part in the unique MOF platform. In this work, we report a Kagome-based lattice MOF for the detection of streptavidin molecules. Interaction between the light coupled into the fiber in form of the LP-like modes and analytes attached to the fiber’s internal surface will result in the analyte detection. This study shows that the Kagome-based MOFs can be used for protein molecule detection.","PeriodicalId":227957,"journal":{"name":"2022 Italian Conference on Optics and Photonics (ICOP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122120308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}