Showing posts with label photonic. Show all posts
Showing posts with label photonic. Show all posts

Tuesday, August 17, 2021

Xanadu and imec target photonic qubits in silicon nitride waveguides

Xanadu, a start-up based in Toronto, announced a partnership with imec to develop photonic qubits based on ultra-low loss silicon nitride (SiN) waveguides.

imec is a leading research and innovation center in nanoelectronics and digital technologies based in Belgium. 

Xanadu is developing a unique type of quantum computer powered by photonic qubits based on squeezed states - a special type of light generated by chip-integrated silicon photonic devices. Such an approach uses particles of light to carry information through photonic chips, rather than electrons or ions used by other approaches. 

Xanadu said its photonic approach offers the benefits of scalability to one million qubits via optical networking, room temperature computation, and the natural ability to leverage fabrication R&D centers such as imec. Xanadu is using silicon nitride to enable the generation of squeezed states, which replace single photons as the basic resource for synthesizing qubits. Squeezed states are deterministically generated, and can be used to distill error-resistant qubits called 'GKP states'. When multiplexed and implemented in Xanadu's architecture, these offer a more promising path to fault-tolerant quantum computing. 

Amin Abbasi, business development manager at imec: "We are pleased to see that imec's wafer-scale low loss SiN photonics platform, initially developed for communication, is finding its way towards other advanced applications, like quantum computing. We look forward to working with Xanadu to drive further development of this platform for their particular needs."

"We are pleased to partner with Xanadu, one of the most exciting companies working in the quantum computing space." said Philippe Helin, specialty components program manager at imec. "Xanadu's mission to build photonic quantum computers matches perfectly with imec's track record of and commitment to pushing the leading edge of integrated technologies," adds Haris Osman, VP R&D and head of department.

"One of the most critical challenges in building a photonic quantum computer is finding the right fabrication partner that can simultaneously deliver cutting-edge process development and volume production of high performing photonic chips," said Zachary Vernon, who heads up Xanadu's Hardware team. "Imec is one of the few semiconductor R&D centers that does advanced technology R&D on advanced 200mm and 300mm lines, as well as volume manufacturing on their 200mm line, capable of delivering up to a thousand wafers per year per customer on a few platforms including ultralow-loss photonic platforms. The seamless transfer offered by imec of new processes to production is especially critical for rapid scaling of our technology."

http://www.xanadu.ai 

Sunday, February 2, 2020

Pakistan Telecommunication upgrades backbone to 200G with Nokia

Pakistan Telecommunication Company Limited (PTCL) upgraded its 100G optical transport network to 200G using Nokia's 1830 Photonic Service Switch (PSS). The capacity expansion has been carried out in the major cities of Islamabad, Lahore and Karachi.

Overview of the solution deployed:

  • Nokia 1830 PSS 
  • By using PTCL’s extensive fiber footprint, Nokia DWDM provides multipath redundancy against multiple fiber cuts hence ensuring higher network availability SLAs.
  • Reconfigurable Optical Add-Drop Multiplexers (ROADMs) technology 
  • 8-QAM increases spectral efficiency 
  • Nokia’s full turnkey services including network design, planning and optimization, project management of site acquisition, civil work construction, and network implementation were used to deploy the network.

Saad Muzaffar Waraich, Chief Technology & Information Officer, PTCL, said: “Being consistently a top-class service provider involves continuously modernizing and upgrading the network as per the changing consumption patterns. In view of this, we have enhanced the existing capacity from 100G optical network to 200G to take care of the growing traffic in these cities. Nokia’s technology and expertise helped us to deploy 100G and enhance customer experience, so its 200G technology is also the right choice for expanding network capacity.”