About Us

Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

Laser Focus World is part of Endeavor Business Media, a division of EndeavorB2B.

Laser Focus World Membership

Never miss any articles, videos, podcasts, or webinars by signing up for membership access to Laser Focus World online. You can manage your preferences all in one place—and provide our editorial team with your valued feedback.

Magazine Subscription

Can you subscribe to receive our print issue for free? Yes, you sure can!

Newsletter Subscription

A Laser Focus World newsletter subscription is free to qualified professionals:

The Daily Beam

Showcases the newest content from Laser Focus World, including photonics- and optics-based applications, components, research, and trends. (Daily)

Product Watch

The latest in products within the photonics industry. (9x per year)

Bio & Life Sciences Product Watch

The latest in products within the biophotonics industry. (4x per year)

Laser Processing Product Watch

The latest in products within the laser processing industry. (3x per year)

Get Published!

If you’d like to write an article for us, reach out with a short pitch to Sally Cole Johnson: [email protected]. We love to hear from you.

Photonics Hot List

Laser Focus World produces a video newscast that gives a peek into what’s happening in the world of photonics.

Following the Photons: A Photonics Podcast

Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

Social Media

Bluesky • Facebook • Instagram • LinkedIn • YouTube

Meet the Laser Focus World Team

Editorial

Sales

Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology
My Watchlist
Indicators
Industrial Laser Index
Markets
Stocks
ETFs
Tools
Markets:
Overview
News
Currencies
International
Treasuries

Keysight and McGill University Demonstrate Record 1.6 Tbps O-band Coherent Transmission over 10 Kilometers

By: via Business Wire
  • Industry-first demonstration enables use of power-efficient coherent optical wavelengths to meet growing data center bandwidth demands
  • Collaboration achieves record 1.2 Tbps and 1.6 Tbps transmission rates over 10 km using distributed feedback lasers for the carrier and local oscillators
  • Keysight’s industry leading Arbitrary Waveform Generator facilitates accomplishment

Keysight Technologies, Inc. (NYSE: KEYS) and McGill University have successfully demonstrated a world record 1.2 Tbps and 1.6 Tbps O-band coherent transmissions operating over 10 km using distributed feedback lasers (DFBs) for both the carrier and local oscillator. The achievement will be presented at OFC 2023, the largest global conference for optical communications and networking professionals.

Artificial intelligence (AI), 5G, and internet of things applications are driving the demand for more bandwidth in optical networks. Leveraging high symbol rate systems increases the aggregate per-wavelength data rate to reduce the cost-per-bit in optical systems. A key trend in data centers is the transition to higher symbol rates through integrated optics, which reduces the component count, cost, and power consumption.

To address growing short-reach intra-data center traffic demands -- from 2 to 10 km – coherent transmission systems are being considered as an alternative to intensity modulation direct detection (IMDD) systems that are currently operating at 200 Gbps per wavelength over 2 km in the O-band. Low chromatic dispersion makes power-efficient coherent links an attractive replacement for IMDD technologies at 1.6 Tbps and beyond.

To demonstrate improvements in short-reach intra-data center transmission rates using coherent O-band solution, Keysight, McGill University, and other research partners collaborated to achieve the record-breaking transmission. The demonstration system consisted of Keysight’s new M8199B 256 GSa/s Arbitrary Waveform Generator that delivers 75 GHz bandwidth in combination with a thin-film lithium niobate I/Q modulator with 100 GHz bandwidth and a 110 GHz 256 GSa/s Keysight Infiniium UXR-Series Oscilloscope. The accomplishment showcased how data centers can use coherent optical fiber transmission systems operating at 167 Gbaud, using dual-polarization, 64-quadrature amplitude modulation scheme to transmit signals at 1.6 Tbps in the O-band using DFBs for the carrier and local oscillators.

McGill University Professor and Canada Research Chair David V. Plant said: “The McGill University research team is very proud to be working with the test and measurement leader Keysight, and our partners, all of whom contributed to achieving this new record. The breakthrough was accomplished by using the latest technologies, including Keysight’s recently announced and most powerful Arbitrary Waveform Generator. This achievement is a significant demonstration on the path to consolidating short-reach, O-band, coherent optical fiber transmission systems for data center interconnect applications.”

Dr. Joachim Peerlings, Vice President of Network and Data Center Solutions at Keysight Technologies, said: “Pushing coherent technologies into the O-band is essential for its future, ubiquitous use in data centers. Our record 1.6 Tbps O-band coherent transmission with Canada’s McGill University is a key milestone towards this goal. The continued proliferation of AI requires new levels of server and network performance that must scale computing resources within reasonable energy bounds. This result is a milestone for the industry moving towards greener data centers.”

Resources

About Keysight Technologies

At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we’re delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product lifecycle. We’re a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world. Learn more at Keysight Newsroom and www.keysight.com.

Contacts

More News

View More
Lower Rates Put RV Stocks Back in the Fast Lane
Via MarketBeat
Tickers CWH THO WGO
Alphabet: Time to Take Profits, Buy, or Wait for a Pullback?
Via MarketBeat
Topics Artificial Intelligence
Tickers GOOGL
Hershey vs. Mondelez: Which Stock Wins Chocolate Season?
Via MarketBeat
Topics Economy
Tickers HSY MDLZ PEP
Thor Industries Tracking for New Highs in 2026
Via MarketBeat
Topics Economy
Tickers THO
Cintas Stock Sends a Clear Buy Signal as Momentum Builds
Via MarketBeat
Topics Government
Tickers CTAS
Stock Quote API & Stock News API supplied by www.cloudquote.io
Quotes delayed at least 20 minutes.
By accessing this page, you agree to the following
Privacy Policy and Terms Of Service.