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.

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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

3G is Going Away – What it Means for You

SPONSORED CONTENT -- (StatePoint) Similar to how the ways we listen to music and watch movies have changed, cellular networks are evolving too. In fact, all major wireless providers plan to shutter their 3G cellular networks this year.

3G networks are the wireless equivalent of being on dial-up internet access years ago. Built in the early 2000s, 3G networks are slower, less efficient, and not equipped to support the way we use smartphones today. Americans increasingly depend on their ability to connect to the internet for just about everything and the latest generation of wireless, 5G, is capable of delivering massively faster speeds, enabling and improving everything we rely on our smartphones to do.

As wireless companies continue to invest in building out their 5G networks, 3G networks will be shut down to make room for this new technology and, ultimately, deliver a vastly superior wireless experience. That’s because there’s a limited supply of available spectrum -- the airwaves that wireless signals use. Wireless companies can take the airwaves once used for 3G and start using them to add more bandwidth to 5G. And more spectrum means better coverage and faster speeds for consumers.

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If you have a phone that still relies on 3G, your wireless provider will contact you before their planned shutdown, and you’re most likely eligible for a free device upgrade.

Even if your phone isn’t from the 3G era, if you aren’t yet one of the millions who’ve upgraded to 5G, the end of 3G means it’s time to trade up for a new device that can take full advantage of faster 5G networks, according to industry experts. Keeping affordability and connectivity in mind, wireless providers are always offering deals.

Research 5G coverage and speeds from the providers where you live and like to travel. The wireless industry has changed significantly since the 3G era, so you may be surprised to learn which network is delivering the fastest and most reliable coverage today. T-Mobile was the first wireless provider in the United States to launch nationwide 5G and, thanks to its merger with Sprint in 2020, it now has the largest, fastest and most reliable 5G network, covering nearly everyone in the country.

It’s also a good time to take a look at your phone plan, especially if you’re on a limited data plan and want to stream music and videos – or just stop hunting for Wi-Fi.

Along with great coverage, find a plan with built-in benefits, such as free international data roaming, gas savings, and discounts on everyday items to make the most out of your mobile phone.

For more information on the future of 5G, visit t-mobile.com/5G.

Connectivity is more essential today than ever, underscoring the importance of the evolution to 5G. From entertainment and gaming to education, the latest wireless technology can connect you to everything that matters, faster than ever before.

Photo 1 Credit: (c) Violka08 / iStock via Getty Images Plus

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