editor's blog
Subscribe Now

Photonics at Leti

CEA-Leti, a French research consortium, reviewed their technology projects during Semicon West last week. I got a chance to speak with Leti’s Hughes Metras afterwards to talk a bit about their photonics work.

They see light as being a useful data conduit when information at the rate of around 10 Mbps needs to be carried over 1 km. Using that product – 10 Gbps-m – as a threshold, it means that for small distances on the order of 1 mm, you need to be transferring data at the rate of about 10 Tbps. We’re certainly not there yet – he sees that happening 5-10 years from now.

Their focus is on silicon integration because of the rapid cost improvements that tend to accrue to things associated with silicon just because of the high volumes produced. They’ve worked on all of the individual photonic components, and are now starting to assemble them into systems. They’ve solicited projects from a number of companies and organizations doing work in this area to combine onto multi-project wafers. That not only makes better use of the wafers, but also provides a variety of configurations that help to push the technology in different directions.

When we looked at optical design tools before, we noted that neither Code V nor LightTools could be used to design photonics. I asked about tools: Mr. Metras sees photonics design being incorporated into standard EDA tools. Right now they’re developing PDKs, process rules, and IP blocks, but no standard commercial tools have picked this up yet.

Work in this area is extending beyond consortia. A number of unnamable IDMs are doing work to combine photonics with CMOS, and Leti hopes to announce a major partnership early next year.

A brief summary of Leti’s photonics work can be found here

Leave a Reply

featured blogs
Jun 30, 2022
Learn how AI-powered cameras and neural network image processing enable everything from smartphone portraits to machine vision and automotive safety features. The post How AI Helps Cameras See More Clearly appeared first on From Silicon To Software....
Jun 30, 2022
The Team RF "μWaveRiders" blog series is a showcase for Cadence AWR RF products. Monthly topics will vary between Cadence AWR Design Environment release highlights, feature videos, Cadence... ...
Jun 28, 2022
Watching this video caused me to wander off into the weeds looking at a weird and wonderful collection of wheeled implementations....

featured video

Demo: Achronix Speedster7t 2D NoC vs. Traditional FPGA Routing

Sponsored by Achronix

This demonstration compares an FPGA design utilizing Achronix Speedster7t 2D Network on Chip (NoC) for routing signals with the FPGA device, versus using traditional FPGA routing. The 2D NoC provides a 40% reduction in logic resources required with 40% less compile time needed versus using traditional FPGA routing. Speedster7t FPGAs are optimized for high-bandwidth workloads and eliminate the performance bottlenecks associated with traditional FPGAs.

Subscribe to Achronix's YouTube channel for the latest videos on how to accelerate your data using FPGAs and eFPGA IP

featured paper

An Engineer's Guide to Designing with Precision Amplifiers

Sponsored by Texas Instruments

Engineers face many challenges when designing analog circuits. This e-book covers common topics related to these products, including operational amplifier (op amp) specifications and printed circuit board layout issues, instrumentation amplifier linear operating regions, and electrical overstress.

Click to read more

featured chalk talk

Energy Storage: The Key to Sector Coupling

Sponsored by Mouser Electronics and Phoenix Contact

Climate change is making better energy storage more important than ever before. In this episode of Chalk Talk, Dr. Rüdiger Meyer from Phoenix Contact joins me to discuss the what, where and how of energy storage systems. We take a closer look at the structure and components included in typical energy storage systems and the role that connectors play in successful energy storage systems.

Click here for more information about Phoenix Contact Energy Storage Solutions