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NEuromorphic PhoTonics with fast and efficient vertical cavity sUrface emittiNg lasErs

Project description

Vertical-cavity surface-emitting lasers enable brain-like photonics functionalities

Today’s photonic technologies – used in everything from barcode scanners to fibre-optic networks – typically handle sensing and computation separately, creating bottlenecks in speed and energy efficiency. With the support of the Marie Skłodowska-Curie Actions programme, the NEPTUNE project aims to overcome this by leveraging widely available and inexpensive vertical-cavity surface-emitting lasers (VCSELs) and drawing inspiration from how the brain computes. The VCSEL systems will generate complex speckled light patterns exquisitely sensitive to environmental changes and encode the changes as brain-inspired neural-like spikes. This will enable the use of neuromorphic paradigms and algorithms, such as ‘extreme learning machines’ and spiking neural networks. The compact, low-cost platform could transform applications in environmental monitoring, security and high-speed communications.

Objective

NEPTUNE aims to develop novel neuromorphic photonic technologies able to both sense and process information in real-time, drawing direct inspiration from the brain’s powerful computational capabilities. Current photonic technologies find applications in sensing, communications, and information processing, including security, environmental monitoring, high-speed fibre-optic and wireless data links. However, sensing and computation functionalities are frequently decoupled, creating bottlenecks in energy and latency. NEPTUNE aims to tackle this critical challenge, addressing the urgent need for compact, low-cost, fast, and efficient photonic platforms that integrate both functionalities in a single hardware framework.
NEPTUNE’s platform exploits Vertical-Cavity Surface-Emitting Lasers (VCSELs), widely deployed in our society (in barcode scanners, mobile phones, light sources in optical networks, datacentres, etc.) for their low cost and energy efficiency. These VCSEL systems, operating at multiple infrared wavelengths, will be used to generate complex speckle patterns through optical fibres, acting as light diffusive media. The characteristics of these light patterns are highly sensitive to environmental perturbations (such as temperature, strain, and audio signals) enabling their sensing functionality. Event-based photo-detecting systems, which convert light signals into neural-like spikes, will capture the formed speckle patterns, creating a high-resolution photonic sensing system based on an ultrafast, discrete, neuromorphic data representation. Simultaneously, by generating fast optical neural-like spiking regimes with the VCSELs, we can exploit spike-based encoding mechanisms to represent input data in speckle patterns, embedding further computational capability in the platform. This allows the use of neuromorphic paradigms and algorithms, such as extreme learning machines and spiking neural networks, for low-latency photonic processing tasks.

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

UNIVERSITY OF STRATHCLYDE
Net EU contribution
€ 260 347,92
Address
Richmond Street 16
G1 1XQ Glasgow
United Kingdom
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data