Let’s think of the last time you sent data without wires. We’re not talking WiFi here, but plain optical signals. Free-space optical communication, or FSO, is an interesting and easy way to transmit ...

The advent of all‐optical modulation format conversion techniques has fundamentally reshaped modern optical communications. These techniques enable the direct manipulation of optical signals in their ...

NII, NTT, Inc. and NTT EAST, Inc. have successfully demonstrated the world's first automated optical transport layer control, ...

Scientists have developed a compact optical amplifier based on a photonic chip that vastly outperforms traditional optical amplifiers in both bandwidth and efficiency. This breakthrough could reshape ...

Copper cabling has been the workhorse for moving data inside of AI and HPC data centers, but fiber is nipping at its heels. Optics brings three possible bandwidth multipliers — wavelength-division ...

How a single silicon chip was designed to be microwave and optical signal-processing engine. The various roles for which this engine can be reconfigured. The performance considerations that were ...

Researchers experimentally demonstrate flexible and customizable filtering of broadband optical signals using chirped and tilted fiber Bragg grating technique NEW YORK, Sept. 16, 2025 /PRNewswire/ -- ...

Radio telescopes are instruments that capture faint radio signals from space and convert them into images of celestial bodies ...

A major bottleneck with high-frequency wireless communications is the conversion from radio frequencies to optical signals and vice versa. This is performed by an electro-optic modulator (EOM), which ...

NASA has achieved what it believes to be a breakthrough in optical communication. The stations on planet Earth have both received and sent messages beamed through NASA's Psyche spacecraft, according ...

A focus-stacked macro photograph of a fabricated gallium phosphide photonic chip featuring multiple spiral waveguides and other test structures. The chip width is just 0.55 cm across. Due to the high ...