Research opens doors in photonic quantum information processing, optical signal processing and microwave photonics
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new integrated photonics platform that can store light and electrically control its frequency (or color) in an integrated circuit.
The platform draws inspiration from atomic systems and could have a wide range of applications including photonic quantum information processing, optical signal processing, and microwave photonics.
“This is the first time that microwaves have been used to shift the frequency of light in a programmable manner on a chip,” said Mian Zhang, a former postdoctoral fellow in Applied Physics at SEAS, now CEO of Harvard-spawned startup HyperLight Corporation and first author of the paper. “Many quantum photonic and classical optics applications require shifting of optical frequencies, which has been difficult. We show that not only can we change the frequency in a controllable manner, but using this new ability we can also store and retrieve light on demand, which has not been possible before.”
The research was published in Nature Photonics.
Microwave signals are ubiquitous in wireless communications, but researchers thought they interact too weakly with photons. That was before SEAS researchers, led by Marko Loncar, the Tiantsai Lin Professor of Electrical Engineering, developed a technique to fabricate high-performance optical microstructures using lithium niobate, a material with powerful electro-optic properties.
Loncar and his team previously demonstrated that they can propagate light through lithium niobate nanowaveguides with very little loss and control light intensity with on-chip lithium niobate modulators. In the latest research, they combined and further developed these technologies to build a molecule-like system and used this new platform to precisely control the frequency and phase of light on a chip.
“The unique properties of lithium niobate, with its low optical loss and strong electro-optic nonlinearity, give us dynamic control of light in a programmable electro-optic system,” said Cheng Wang, co-first author of the paper and now Assistant Professor at City University of Hong Kong. “This could lead to the development of programmable filters for optical and microwave signal processing and will find applications in radio astronomy, radar technology, and more.”
Next, the researchers aim to develop even lower-loss optical waveguides and microwave circuits using the same architecture to enable even higher efficiencies and, ultimately, achieve a quantum link between microwave and optical photons.
“The energies of microwave and optical photons differ by five orders of magnitude, but our system could possibly bridge this gap with almost 100 percent efficiency, one photon at a time,” said Loncar, senior author of the paper. “This would enable the realization of a quantum cloud – a distributed network of quantum computers connected via secure optical communication channels.”
Learn more: Programming light on a chip
The Latest on: Integrated photonics platform
via Google News
The Latest on: Integrated photonics platform
- ColorChip Introduces an Ultra-Compact RGB Pico-...on September 5, 2019 at 10:31 am
5, 2019 /PRNewswire/ -- ColorChip, a global leader in photonic integrated technologies, introduces a highly innovative, ultra-compact, efficient RGB Pico-Projector based on a patented PLC ...
- Brillouin integrated photonicson August 19, 2019 at 10:25 am
A recent renaissance in Brillouin scattering research has been driven by the increasing maturity of photonic integration platforms and nanophotonics. The result is a new breed of chip-based devices ...
- Silicon photonics firm Rockley raises another $52mon August 1, 2019 at 3:10 am
On-silicon photonics firm Rockley Photonics has accumulated ... FMCW lidar inherently allows target velocity to be measured. “Our wafer-scale platform provides all the elements for fully integrated ...
- PDK for integrated SiPho and SiGe ICson July 10, 2019 at 10:27 pm
TowerJazz, Cadence and Lumerical are offering a complete custom design Silicon Photonics (SiPho) and Silicon Germanium (SiGe) integrated PDK. The PDK is based on the Cadence Virtuoso custom IC design ...
- TowerJazz, Cadence and Lumerical Deliver Silicon-Photonics and SiGe- Integrated PDK with a Complete Optical Transceiver Design Environmenton July 10, 2019 at 3:13 am
The differentiated PDK is based on the Cadence ® Virtuoso ® custom IC design platform, providing native synthesis using the Cadence CurvyCore engine and Electrical-Optical co-simulation capability in ...
- Rockley Photonics snags $52 million in first close of Series E funding roundon July 7, 2019 at 5:00 pm
“With this latest round of investment, Rockley is strengthening its position as a leading integrated silicon photonics solutions ... uniquely positioned having developed a proprietary photonics ...
- Rockley Photonics announces further $52M fundingon July 3, 2019 at 1:50 am
In mid-June, 2019, Rockley demonstrated the strength of its coherent sensing capabilities in its silicon photonics platform. At Sensors Expo, in San Jose, the company showcased its Frequency-Modulated ...
- Rockley Photonics announces further $52M fundingon July 3, 2019 at 1:12 am
although the company also released a silicon photonics platform for sensing recently. Mahesh Karanth, chief financial officer at Rockley explained: “With this latest round of investment, Rockley is ...
- Rockley Photonics raises $52m in Series E funding roundon July 2, 2019 at 1:31 am
Its platform was developed with a focus on high-volume manufacturing of highly integrated optical and electronic devices. Silicon photonics involves the microintegration of optical functions on ...
via Bing News