Information about important trends and developments

Rockley Publications

Real-Time, Non-Invasive Biomarker Sensing on the Wrist

July 2021

With a new mobile platform that integrates optical and electronic hardware, firmware, algorithms, and cloud-based analytics, Rockley has created a new class of sensor with the potential to deliver the level of measurement and analysis needed for consumer wearables and medical monitoring devices…. VIEW PDF

Silicon Photonics Platform for Next-Generation Transceivers

March 2020

This reference design for a 400G DR4 transceiver uses Rockley’s four-channel 400G silicon photonic integrated circuit chipsets (PICs)…. VIEW PDF

Rockley Photonics OptoASIC

March 2020

25.6T Switch Co-Packages with LightDriver™ and Copper Cable Attached 400G Modules…. VIEW PDF

Bringing LiDAR to the Masses

June 2019

3D imaging and sensing is a growing technology in the consumer, automotive, and industry/commercial markets. Specifically, LiDAR, or Light Detection and Ranging, is an emerging sensor technology that most automotive makers rely on in their pursuit for Level 4 (fully automated and driverless) and Level 5 (fully automated and no steering wheel needed) vehicle autonomy…. VIEW PDF

Medical Wearables

May 2019

With a total focus on low power and cost for high volume integrated optical/electronic devices, Rockley Photonics’ technology platform leads the field in ultra-high performance product applications. Rockley’s versatile and differentiated silicon photonics platform offers multiple benefits over sub-micron technology to deliver optimized integrated optics solutions to a broad field of market applications…. VIEW PDF

Sailing through the Data Deluge with Pervasive Optical Technology

February 2019

Processors, memories, and storage devices are still predominantly electronic, whereas communication has become predominantly optical. We can picture a perimeter around the electronic domain demarcating the border between electrical and optical communication. Inside the perimeter, electrical interconnects are the most cost-efficient solution, whereas outside optics rule…. VIEW PDF

The Silicon Photonics Sensing Platform for Age of AI, Mobility, and Autonomy

January 2019

Rockley’s technology platform was developed with a total focus on high volume manufacture of highly integrated
optical/electronic devices for ultra-high performance sensing applications. Rockley’s large waveguide photonics
platform consists of blocks which offer multiple benefits over conventional solutions. These benefits include higher
density waveguide circuits and complex system integration, better manufacturing tolerance, superior optical power
handling, and more efficient interface from the photonics IC to the outside world…. VIEW PDF

Articles in External Publications

Co‐packaged datacenter optics: Opportunities and challenges

Institute of Engineering and Technology
March 2021

Cyriel Minkenberg, Rajagopal Krishnaswamy, Aaron Zilkie, David Nelson

High‐capacity, high‐density, power‐, and cost‐efficient optical links are undoubtedly of critical importance for datacenter infrastructure. However, the optics roadmap has come to a fork in the road: Is it right to continue on the tried and proven path of pluggable modules or is it time to adopt a new deployment model that involves co‐packaged optics?… READ MORE

Integrated optics permeate datacenter networks

October 2018

Cyriel Minkenberg, Greg Finn, and Nick Kucharewski

Photonic integrated circuits (PICs) and silicon-photonics-based optical engines will expand datacenter network potential over the next decade…. READ MORE

Viability of Fiber-to-the-Server: Are We There Yet?

Proc. Photonics in Switching and Computing (PSC 2018)
September 19-21, 2018

C. Minkenberg

A comparative analysis of datacenter network architecture trade-offs between traditional Top-of-Rack-based architectures using copper server connectivity versus deploying fiber to the server (FTTS) reveals that emerging low-cost co-packaged optics in combination with high-radix switch devices are likely to tip the balance in favor of FTTS…. READ MORE

Reimagining datacenter topologies with integrated silicon photonics

OSA Journal of Optical Communications and Networking
Vol. 10, nr. 7, pp. B126-B139, July 2018

C. Minkenberg, N. Farrington, A. Zilkie, D. Nelson, C. Lai, D. Brunina, J. Byrd, B. Chowdhuri, N. Kucharewski, K. Muth, A. Nagra, G. Rodriguez, D. Rubi, T. Schrans, P. Srinivasan, Y. Wang, C. Yeh, and A. Rickman

Breakthroughs in silicon photonics are changing the economics of network hardware and are enabling new directions in computer networking, compelling us to reexamine our previous assumptions regarding computer and network architectures…. READ MORE

Redefining the Economics of Reach with Integrated Optics

IEEE International Conference in High-Performance Switching and Routing (HPSR 2018)
June 17-20, 2018

C. Minkenberg, G. Rodriguez, and N. Kucharewski

The coincidence of the trends of shrinking electrical reach and emergence of cost- and power-efficient integrated optics is set to cause a “perfect storm” in datacenter network architecture that will invalidate existing assumptions and require re-evaluation of prevalent architectural best practices…. READ MORE

Network Architecture in the Era of Integrated Optics

Proc. 2018 Optical Networking and Communication Conference (OFC 2018)
San Diego, CA, March 11-15, 2018

N. Kucharewski, C. Minkenberg, and G. Rodriguez

Disparities in reach and cost between electrical and optical ports have important implications for network architecture. We quantify network cost, capturing the tradeoffs of pizzabox versus chassis switches and the potential impact of integrated optics…. READ MORE

Roadmap on silicon photonics

Journal of Optics
Vol. 18, no. 7, June 2016

D. Thomson, A. Zilkie, J. Bowers, T. Komljenovic, G. Reed, L. Vivien, D. Marris-Morini, E. Cassan, Léopold Virot, J.-M. Fédéli, J.-M. Hartmann, Jens Schmid, D.-X. Xu, F. Boeuf, P. O’Brien, G. Mashanovich, and M. Nedeljkovic

Silicon photonics research can be dated back to the 1980s. However, the previous decade has witnessed an explosive growth in the field. Silicon photonics is a disruptive technology that is poised to revolutionize a number of application areas, for example…. READ MORE

Your Data Center Switch is Trying Too Hard

Proc. ACM Symposium on SDN Research (SOSR 2016)
Santa Clara, CA, March 14-15, 2016

X. Jin, N. Farrington, and J. Rexford

We present Sourcey, a new data center network architecture with extremely simple switches. Sourcey switches have no CPUs, no software, no forwarding tables, no state, and require no switch con- figuration. Sourcey pushes all control plane functions to servers…. READ MORE

The Future of the Data Center: Reinventing the Network

Data Center Journal
September 20, 2015

Dr. Andrew Rickman

In today’s interconnected world, we send or post approximately 168 million emails, 11 million instant messages, 98,000 tweets and 695,000 Facebook updates every 60 seconds. Alongside the data transfers created by people, IoT applications will generate a further 3.9 exabytes of data by 2017 as a result of machine-to-machine communication…. READ MORE

The Commercialization of Silicon Photonics

Nature Photonics
July 31, 2014

Dr. Andrew Rickman

Silicon photonics is the optical analogue of silicon microelectronics. It promises to use photons to detect, process and transmit information more efficiently than electrical signals, and yet have low manufacturing costs as a result of using conventional silicon-integrated-circuit processes…. READ MORE