Multiplexed OAM Hybrid Near-Mid Infrared Link
Calls: PRIN 2022
Start date: 2023-09-01 End date: 2025-09-01
Total Budget: EUR 209.000,00 INO share of the total budget: EUR 125.000,00
Scientific manager: and for INO is: Mosca Simona
Organization/Institution/Company main assignee: CNR – Istituto Nazionale di Ottica (INO)
other Organization/Institution/Company involved:
Università di Napoli “Federico II”
other INO’s people involved: Parisi Maria
The goal of this project is to realize a hybrid OAM multiplexed communication link, operating in their optimal wavelength range and connected via a coherent conversion process.
The conversion will be realized by an Intracavity Difference Frequency Generation (IDFG) to transfer coherently OAM modes to MIR spectral regions by preserving the quality of the modes.
In OAM-based fiber communication over long distances, it is mandatory mitigating the crosstalk between the propagating OAM modes. For this purpose, in the present project, we propose to develop a suitable simulation tool to evaluate and reduce the intermodal crosstalk in FMFs, experimentally validating the results obtained in an advanced 9-LP mode FMF, such as that deployed in L’Aquila town.
At present tools for manipulating OAM, as well as for MUX/DEMUX multiple OAM-carrying beams are relatively missing in MIR. In OMyLink project, we will exploit suitably-designed geometric phase optical components to enable OAM generation, manipulation and detection in this range.
A detailed analysis of the link stability in MIR will be performed, including the study and simulation of the link resilience to atmospheric turbulences.
Lastly, all the results of the project will be combined together in a final experiment demonstrating the full hybrid fiber/free space link based on OAM multiplexing.