Space-division multiplexing (SDM) is an advanced transmission strategy that harnesses spatial channels within optical fibres to dramatically increase data capacity beyond the single-mode limitations.

Quantum cascade lasers (QCLs) have emerged as pivotal sources for free-space optical communication (FSO) in the mid-infrared spectral region. Owing to their intrinsically narrow linewidth, high output ...

Figure 1: NICT's 7.4 km, 2 Tbit/s horizontal propagation experiment (April 2025). The ST terminal was used as the transmitter and the FX terminal as the receiver. The terminals exchanged pseudo-random ...

Despite the modern world relying heavily on digital optical communication, there has not been a significant improvement in the minimum attenuation—a measure of the loss of optical power per kilometer ...

Transcelestial tested its ability to identify and track laser transmissions from a satellite to ground stations. Credit: Transcelestial WASHINGTON — Transcelestial has advanced its work to provide ...

Chinese telecom and fiber-optics companies have achieved a major milestone in next-gen communications, successfully ...

Tiny fiber-optic cables on seabed can do a lot more than you can imagine as researchers have found that these underwater ...

Ever since the dawn of the space age, humanity has relied on radio frequency (RF)-based communication systems to talk to its astronauts, rovers, and probes. It’s likely that will continue to be the ...

Taara, which started nine years ago as part of Alphabet’s “Moonshot Factory,” X, is building what could be the future high-speed internet.

Bengaluru start-up Qosmic raises $3.33M to revolutionize satellite data transfer with laser-based optical communication ...

A new method aims to produce crystals that "precisely match a specific optical wavelength." Credit: Voyager Technologies Voyager Technologies plans to test aboard the International Space Station (ISS) ...

Despite boasting one of the country’s largest populations, the south-east Mexico region has long lacked high-quality network infrastructure, but aiming to close this digital divide, Mexican comms ...