Info
Info
News Article

CEA-Leti Clears Path To Low Loss High-Power Photonics

News

Si3N4 200mm platform targets designers in integrated quantum optics, LiDAR, biosensing, and imaging

Leti, an institute of CEA-Tech in France, has developed a Si3N4 200mm platform for developing ultralow loss, high-power photonics in UV through mid-infrared wavelengths. Available in CEA-Leti's SiN platform in a multi-project-wafer program, the breakthrough targets designers in integrated quantum optics, LiDAR, biosensing, and imaging whose projects require ultralow propagation losses and high-power handling capability.

Announced at Photonics West 2020, this ultralow-loss SiN layer is available for multi-level photonic circuits. It can be combined with a heater layer and a silicon layer in a unique platform to integrate passive and active components, such as Mach-zehnder interferometers (MZI), multi-mode interferometers (MMI), ring resonators, filters, arbitrary waveform generators (AWG), modulators and photodiodes. This ultralow-loss layer can also present a local opening for biosensing applications.

“Companies requiring III-V/SiN laser cointegration or working on integrated quantum photonics for communication and computing applications can use this unique capability to combine those ultralow-loss properties with high thickness SiN in a CMOS-compatible photonics platform,” said Eléonore Hardy, business developer at CEA-Leti. “This breakthrough process will contribute to the Quantum 2.0 revolution and will lead to photonic devices that actively create, manipulate, and read out quantum states for the emergence of quantum computing, imaging, sensing, communication, and clocks.”

The best-in-class performance obtained with an 800-nm thick SiN layer includes a two times reduction in propagation loss with three decibels per meter (3 dB/m) for high-confinement 1.6µm-wide strip waveguides across the S, C, and L optical-wavelength bands. CEA-Leti researchers also improved aging in the photonics devices and produced high-Q photonic microresonators with quality factors approaching 107 across the C band and reduced feature size.

Deposition of SiN uses CEA-Leti's high-quality twist-and-grow, low-pressure chemical vapor deposition (LPCVD) technique that deposits relatively thick, pure, and stoichiometric SiN with good thickness uniformity, unlike standard chemical vapor deposition techniques. Furthermore, a multistep chemical-physical annealing smoothed the sidewall roughness of SiN waveguides, which further decreased propagation losses.

PIC International 2020 - New Dates Announced.

JOIN THE MARKET LEADING GLOBAL INTEGRATED PHOTONICS CONFERENCE AND EXHIBITION TODAY!

In light of the global Coronavirus pandemic, we have rescheduled AngelTech, comprising, PIC International, co-located with CS International, and SSI International to 17TH and the 18th November at the Sheraton Airport Hotel, Brussels, Belgium

In its fifth year, PIC International has become the definitive global integrated photonics conference, providing comprehensive coverage of the industry.

2020 will be no exception and is set to be even bigger and better!

Bringing together 3 conferences, 800+ delegates, 80+ exhibitors, 120+ presentations and numerous networking opportunities, AngelTech is the number one global event covering compound semiconductor, photonic integrated circuit and sensor technologies. With a strong over-lap between the three conferences, attendees and exhibitors are exposed to the full relevant supply chains and customer and supplier bases.

ACT NOW – THIS WILL BE ANOTHER SELLOUT!

View Agenda    Register your place here

Info
×
Search the news archive

To close this popup you can press escape or click the close icon.
Logo
×
Logo
×
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:
 
X
Info
X
Info
{taasPodcastNotification}