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HePIC aims at supporting the device level of programmable optical networks and the flexible WDM and SDM transmission layer with a focus on energy-efficient photonic hardware accelerators for advanced signal processing in classical and quantum communications.

Project objectives are:

  • Development of assembled photonic integrated sub-systems through hybrid and heterogeneous photonic and electronic integration
  • Coordination of shared access to multi-wafer projects foundry runs and PIC design assistance
  • Implement demonstrators involving other partners

HePIC is part of Spoke 1 – Pervasive and Photonic Network Technologies and Infrastructures

Project PI: Andrea Melloni

WP1-Management Preliminary contacts with silicon photonic foundries and LNOI foundries, acquisition of preliminary information on the management of the foundry runs, NDA documentation, payments, etc. Analysis of the possibility to involve partners of RESTART interested in PIC. Preparation and distribution of a PIC survey form. PoliMI recruited 1 PhD, Andres Ivan Martinez Rojas (male) SSSA recruited 1 RTD-A, Gaurav Pandey (male) and 1 PhD, Valentina Gemmato (female)
WP2 - PICs Design Design activities on LNOI platform: integrated optical phased arrays for on-chip communication, OPO and modulators. Waveguide issues analysis (loss and polarization)
WP3- Control Layer Acquisition of instrumentation: MULTILANE: 4-Lane, 58 GBd PAM4, 400G BERT, laser for optical characterization, optical table. Activities on electronic-photonic monoliotic integration.
WP4- Integration and packaging Analysis of equipment for Laser solder for flip chip assembly station and Nanoscribe upgrade.

In the months 9 to 15 of the project the main activities focused on: 
  • Progress in FSO and multimode fiber systems with photonic programmable processors for mode generation and separation. 
  • Progress in monolithic integration of photonic and electronic devices on a silicon photonic commercial platform with zero-changes process flow
  • Selection of SOI chips available at PoliMi and organization of the distributions among partners of Rigoletto and GC18 (and RESTART in general) for testing and proposal of a Round Robin on PICs
  • Established a collaboration with Univ. Trento on nonuniform optical antenna arrays (1 paper, IEEE PTL)
  • Acquisition of the 45% of the planned instrumentation (PoliMI and PoliBA)
In the months 9 to 15 of the project the main achieved results are:
  •  1 paper published on Nature Photonics: S.M. SeyedinNavadeh et al, Determining the optimal communication channels of arbitrary optical systems using integrated photonic processors, Nature Photonics 18 (2), 149-155
  • LNOI: started a collaboration with a company for LNOI integrated devices realization and characterization
  • 3 Journal publications and 9 conference contributions


In month 18 of the project the main achieved results are:
  • New collaboration between three national groups (PoliMI, PoliBA and SSSA) are ongoing.
  • Consolidation and upgrade of instrumentation in the laboratories of the three partners for characterization and fabrication of photonic devices.
  • Recruitment of new and experienced personnel.
  • 8 National research groups expressed interest for receiving custom PIC in SOI and LNOI technologies for their projects. More groups are expected to join within the Cascaded Calls, especially from Companies and startups.


Scientific, Industrial and Exploitable Results:

  • First demonstration of monolithic integration of photonic and electronic devices on a silicon photonic commercial platform with zero-changes process flow (see publications).
  • The foundry AMF (Singapore) expressed the interest for the achievement.
  • Preliminary results on demonstrator “General purpose photonic processor for advanced telecom signal processing” (see publications)


Papers:
S.M. SeyedinNavadeh et al, Determining the optimal communication channels of arbitrary optical systems using integrated photonic processors, Nature Photonics 18 (2), 149-155 

A. Martinez et al., Self-Adaptive Integrated Photonic Receiver for Turbulence Compensation in Free Space Optical Links, arXiv: 2406.05402 

F. Zanetto et al., "Time-Multiplexed Control of Programmable Silicon Photonic Circuits Enabled by Monolithic CMOS Electronics", Laser & Photonics Reviews, 2300124, 2023 
The PoliMi group is collaborating with AFR (Advanced Fiber Resources Milan S.r.L, Italy) on the exploitation of thin film lithium niobate for applications of photonic computing and microwave photonics. The advantages are no thermal crosstalk and much higher speed compared to silicon photonics.   
Politecnico di Milano, il chip che fa i “conti” con la luce su Nature Photonics, una collaborazione tra Politecnico di Milano e Scuola Superiore Sant’Anna di Pisa richiamata da Repubblica Affari&Finanza:

https://finanza.repubblica.it/Pages/News/Item.aspx?ID=193_2023-11-29_TLB
https://www.youtube.com/watch?v=fc2XvJOirHs

Light: Science & Applications dedicates a Special Issue to PoliMi’s Research on Optics and Photonics

Prof. Francesco Morichetti from the Department of Electronics, Information and Bioengineering and Prof. Giulio Cerullo from the Department of Physics have been selected as Guest Editors-in-Chief of a special issue of the scientific journal Light: Science & Applications (Springer Nature Group) dedicated to the most recent and fascinating research works in optics and photonics performed at Politecnico di Milano. Topics of interest within the special issue’s scope include, but are not limited to: biophotonics and medical optics; optical imaging and display; optical materials, metamaterials and photonic crystals; optical communications and fiber optics; quantum optics and quantum information; optoelectronic devices and photodetectors; lasers and laser optics; micro, nano and integrated photonics; nonlinear optics; ultrafast optics and femtosecond/attosecond spectroscopy. https://www.nature.com/documents/Politecnico_di_Milano_Special_Issue__announcement_.pdf
  1. Most relevant Publications:
    • F. Zanetto et al., "Time-Multiplexed Control of Programmable Silicon Photonic Circuits Enabled by Monolithic CMOS Electronics", Laser & Photonics Reviews, 2300124, 2023
    • A. Melloni et al., Programmable photonics for free space optics communications and computing, IEEE IPC, Orlando, 2023, invited
    • F. Morichetti, Integrated Photonic Processors for Optical Free-Space Links, OFC 2024, San Diego, invited
    • G. Calò et al.,“Integrated Optical Phased Arrays for on-chip Communication”, 23th ICTON, 2-6 July 2023, invited
    • A. Martinez et al., Self-Adaptive Integrated Photonic Receiver for Turbulence Compensation in Free Space Optical Links, arXiv: 2406.05402
    • SM SeyedinNavadeh et al, Determining the optimal communication channels of arbitrary optical systems using integrated photonic processors, Nature Photonics 18 (2), 149-155
  2. Number of groups that expressed the interest in foundry run participation: 8
  3. Acquisition of new instrumentation: 45%
  • M1: SOI PIC fabrication - Dedicated fabrications are not possible for budget restriction and difficulties to access foundries from Public Administration. The Partners of RESTART can ask Hepic for SOI chips available on-the-shelf by PoliMI for building blocks and circuits. Interested partners can fill this form.
  • M2: LNOI PIC fabrication - expected available beginning 2025
  • M3: PDK ready - A large number of SOI PDKs are available. Activities still on going
  • M4: Laser and PD integration - In progress, Polifab and Inphotech involved
  • M5: BB for LNOI - Delayed because of lack of LNOI foundry available
  • M6: Control layer - Accomplished in advance but activities are still going

Researchers involved: 11

Collaboration proposals
One of the goal of the HePIC project is to provide a support to Partners in RESTART, from conceptualization to packaging, in order to lower the barrier to access PIC technologies to groups involved in higher hierarchical level such as systems and networks. 

It is of main importance for HePIC having the funds necessary to access to commercial foundries in SOI and LNOI technologies. The cost of a SOI MPW run is around 60 kEu. For LNOI, the foundry AFR operates near Milano and could be advantageously involved. The access would be guaranteed providing a person (PhD) for the period of the project.

Fill the Survey on Photonic Integrated Circuits at the following link

For any proposal of collaboration within the project please contact the project PI.