+44 (0)24 7671 8970
More publications     •     Advertise with us     •     Contact us
News Article

Mapping light propagation in a photonic chip


Researchers have used the optical properties of silicon to reveal how light moves through a PIC without perturbing it.

Silicon-based photonics is a developing field that is relevant for datacentres, artificial intelligence, quantum computing, and more. It is a convenient technology to use, as it is based on the same prevalent raw material from chips in the world of electronics.

However, despite benefitting from the well-developed lithography production process, which enables precise fabrication of the desired devices, the instruments don’t yet enable accurate mapping of a chip’s optical characteristics. This includes its internal light motion – a crucial capacity given the difficulty of modelling the effects of fabrication flaws and inaccuracies – due to the devices’ tiny dimensions.

A new article by researchers from Technion - Israel Institute of Technology’s Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering tackles this challenge, showing advanced light imaging in photonic circuits on chips. The research, which was published in the journal Optica, was led by Guy Bartal, head of the Laboratory for Advanced Photonic Research, and doctoral student Matan Iluz, in collaboration with Amir Rosenthal’s research group.

The team harnessed the optical characteristics of silicon to map the light’s propagation without requiring an invasive action of any sort, which perturbs or alters the chip. This process includes mapping the light waves’ electric field and defining the elements that affect the light’s movement – waveguides and beamsplitters.

The process developed by the Technion researchers provides real-time images and video recordings of the light inside the photonic chip, without having to damage the chip and without losing any data. This new process is expected to improve the design, production, and optimisation processes of photonic chips in a variety of fields, including telecommunications, high-performance computing, machine learning, measuring distances, medical imaging, sensing, and quantum computing.

Main image credit Technion

Cisco and Microsoft deliver 800G on Amitié Transatlantic Cable
SWIR photodetectors made of eco-friendly colloidal quantum dots
Physik Instrumente to add new facility in Massachusetts
NGen announces funding for new advanced manufacturing projects
Mapping light propagation in a photonic chip
UK Government announces new funding for chips and quantum
Diamond microchiplet could pave the way for the quantum internet
Creating photonic chips with a laser printer
Photonic circuits used to model topological insulators
Nubis and Alphawave Semi demonstrate PCIe 6.0 optical link
PI launches new algorithm for photonic alignment
ORCA Computing acquires integrated photonics division of GXC
Quantifi Photonics launches new oscilloscope for interconnect testing
LIGENTEC participates in 6G project for AV networks
Quantum information company Infleqtion acquires SiNoptiq and Morton Photonics
Vector Photonics participates in roundtable on startups
Luceda Photonics releases PDK in partnership with Luxtelligence
SMART Photonics moves from 3-inch to 4-inch wafers
Programmable photonic circuits in optical fibres
GBT Tokenize receives patent for photonic chip technology
Innolume to increase quantum dot laser production capacity
Project combining integrated photonics with superfluid helium wins funding
LioniX appoints Ronald Dekker as new CTO
Researchers develop comb lasers with improved stability and efficiency
Synopsys to acquire Ansys
Fraunhofer IPMS to present customised tech at SPIE Photonics West
Electron microscopy used to study nonlinear optics in photonic chip
BluGlass completes its acquisition of GaNWorks Foundry
Ayar Labs announces additions to leadership team
ANELLO Photonics launches new 3-axis optical gyroscope
SIP Global Partners invests in Lightmatter

Search the news archive

To close this popup you can press escape or click the close icon.
Register - Step 1

You may choose to subscribe to the PIC Magazine, the PIC Newsletter, or both. You may also request additional information if required, before submitting your application.

Please subscribe me to:


You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in: