In April 2026, a team of researchers demonstrated something that seemed like science fiction until just a few years ago: a chip-scale laser transmitter that pushed wireless data speeds past 360 Gbps over a short indoor link — using approximately half the energy per bit of the most advanced WiFi hardware currently available.
To put that number in perspective: 360 Gbps is enough to transfer a complete 4K movie in less than one second. It is more than 30 times faster than WiFi 7, the latest generation of home wireless networks. And it accomplishes all of this while consuming significantly less energy, which has enormous implications for data centers, offices, and even homes of the future.
The technology uses light instead of radio waves to transmit data — a fundamental shift that not only increases speed but also eliminates chronic WiFi problems such as interference between devices, spectrum congestion, and security vulnerabilities inherent to radio transmissions.
What Happened
The speed of 360 Gbps is not just an impressive number — it represents a qualitative leap in the possibilities of indoor wireless communication. To understand the impact, consider the current speeds of the most advanced wireless technologies.
WiFi 7 (802.11be), commercially launched in 2024-2025, offers theoretical maximum speeds of about 46 Gbps under ideal laboratory conditions. In practice, home users rarely exceed 2-5 Gbps. WiFi 6E, still widely used, sits in the 1-2 Gbps real-world range.
5G, the most advanced cellular technology, reaches peaks of 10-20 Gbps on millimeter waves, but with extremely limited range and virtually zero wall penetration.
At 360 Gbps, the laser transmitter surpasses all these technologies by an enormous margin. This speed enables scenarios that are simply impossible with conventional WiFi: instant transfer of entire media libraries between devices, virtual reality streaming at maximum resolution without compression, complete server backups in seconds, and machine-to-machine communication in industrial environments with ultra-low latency.
For data centers — where server-to-server communication is the bottleneck limiting the performance of everything from Google searches to AI model training — laser technology could eliminate the need for thousands of kilometers of internal fiber optic cables, reducing costs, complexity, and energy consumption simultaneously.
Context and Background
Replacing radio waves with light for wireless communication brings a set of advantages and disadvantages that need to be understood to evaluate the technology's real potential.
Among the advantages, the most significant is the absence of interference. WiFi radio waves compete with microwaves, Bluetooth, neighboring devices, and even interference from other apartments in the same building. The infrared light used by the laser transmitter operates at completely different frequencies, immune to all these interference sources. In an office with hundreds of devices, each laser link operates completely independently, without performance degradation.
Security is another natural advantage. WiFi signals pass through walls and can be intercepted by anyone within range. Laser light does not pass through walls — the signal remains confined to the room where it is emitted, making external interception physically impossible without direct visual access to the beam.
The available bandwidth is practically unlimited. The radio spectrum used by WiFi is a finite and increasingly congested resource. The optical spectrum offers orders of magnitude more bandwidth, allowing thousands of laser links to operate simultaneously in the same environment without any mutual interference.
On the other hand, the main disadvantage is the need for line of sight. Radio waves navigate around obstacles and pass through walls; light does not. If a person, piece of furniture, or any opaque object blocks the path between transmitter and receiver, communication is interrupted. This significantly limits use scenarios and requires creative engineering solutions, such as multiple transmitters with redundant coverage or beam-tracking systems that automatically redirect the light.
Despite line-of-sight limitations, there are numerous scenarios where indoor laser technology is not only viable but clearly superior to WiFi.
Data centers are the most obvious and potentially most lucrative use case. Server racks in data centers are organized in rows with clear line of sight between them. Replacing fiber optic cables with wireless laser links would eliminate cabling complexity, facilitate reconfigurations, and reduce maintenance costs. With explosive demand for AI computing capacity, any efficiency gain in data centers has immense economic value.
Corporate offices represent another promising scenario. Fixed workstations with monitors, docking stations, and peripherals could use laser links for ultra-high-speed connectivity, while mobile devices like smartphones and tablets would continue using conventional WiFi for mobility.
Industrial environments — factories, warehouses, assembly lines — frequently suffer from electromagnetic interference that degrades WiFi. Optical communication is immune to this interference, making it ideal for robot control, industrial sensors, and automation systems requiring ultra-low latency and absolute reliability.
Hospitals and medical environments are another natural niche. Sensitive medical equipment can be affected by radio waves, and patient data security is critical. Laser links offer both advantages: zero electromagnetic interference and inherent physical security.
The physics that enables 360 Gbps over a laser link is fundamentally different from what makes WiFi work, and understanding this difference reveals why the speed gap is so enormous.
WiFi operates in the radio frequency spectrum — specifically at 2.4 GHz, 5 GHz, and 6 GHz for the latest WiFi 6E and WiFi 7 standards. These frequencies offer a certain amount of bandwidth that can be divided among channels. Even with the widest channels available (320 MHz in WiFi 7), the theoretical maximum data rate is constrained by the Shannon-Hartley theorem, which sets a fundamental limit on how much information can be transmitted through a channel of a given bandwidth and signal-to-noise ratio.
The laser transmitter operates at optical frequencies — hundreds of terahertz, compared to the single-digit gigahertz of WiFi. This means the available bandwidth is literally thousands of times larger. The chip-scale laser can modulate data onto this optical carrier at rates that would be physically impossible with radio waves, simply because there is so much more electromagnetic "space" to work with.
Additionally, the laser's concentrated beam means that virtually all transmitted power reaches the receiver, resulting in an extremely high signal-to-noise ratio. In WiFi, the signal disperses in all directions, bounces off walls and furniture, and arrives at the receiver as a weakened, distorted version of the original. The laser signal arrives clean and strong, allowing more aggressive modulation schemes that pack more data into each photon.
The combination of vastly more bandwidth and much higher signal quality is what produces the 360 Gbps figure — and researchers believe this is far from the theoretical limit. Future iterations of the technology could potentially reach terabit-per-second speeds over indoor links.
It is important to contextualize: laser technology will not completely replace WiFi. The two technologies have complementary use profiles, and the most likely future is coexistence where each is used where its advantages are most relevant.
WiFi will continue to be the natural choice for mobile devices that need connectivity in any position and orientation within an environment. Smartphones, tablets, wearables, and IoT devices will continue depending on radio waves for their ability to navigate around obstacles and function without line of sight.
Laser, in turn, will be the choice for fixed or semi-fixed connections requiring maximum speed and energy efficiency: network backhaul, connections between fixed equipment, high-capacity links in data centers, and industrial environments.
This complementarity already has precedent in the telecommunications industry, where fiber optics and radio have coexisted for decades — fiber for the high-capacity backbone, radio for the last mile to the end user.
Impact on the Population
| Aspect | Previous Situation | Current Situation | Impact |
|---|---|---|---|
| Scale | Limited | Global | High |
| Duration | Short-term | Medium/long-term | Significant |
| Reach | Regional | International | Broad |
If speed is the most eye-catching aspect of the technology, energy efficiency may be the most transformative. The laser transmitter demonstrated consuming approximately half the energy per bit compared to market-leading WiFi hardware.
In a world where data centers already consume about 1-2% of all global electricity — and that percentage is growing rapidly with the explosion of generative AI — any technology that reduces data communication energy consumption has significant economic and environmental impact.
The laser's superior efficiency has an elegant physical explanation. Radio waves, like those used by WiFi, are emitted in all directions (or in a wide cone, in the case of directional antennas). Most of the energy is wasted illuminating walls, furniture, and air — only a tiny fraction reaches the receiving device. Additionally, the radio spectrum is shared among dozens of devices, requiring complex medium access protocols that consume additional energy.
The laser, on the other hand, emits a concentrated beam that delivers nearly all its energy directly to the receiver. There is no waste from omnidirectional dispersion, no competition for shared spectrum, and optical modulation is intrinsically more energy-efficient than radio frequency modulation at high data rates.
It is important to note, as highlighted by Morning Overview in their coverage of the research, that the energy efficiency comparison is not a standardized like-for-like benchmark. The laser transmitter's test conditions (short-distance link, controlled environment, point-to-point) differ from typical WiFi operating conditions (multiple devices, obstacles, variable distances). The real-world advantage in practical scenarios may differ from laboratory numbers.
Despite impressive laboratory results, indoor laser technology still faces significant challenges before reaching the consumer market. The primary challenge is engineering systems that handle the line-of-sight limitation transparently for the user.
Researchers are working on beam-tracking (beam steering) systems that use micromirrors or liquid crystals to automatically redirect the laser as the receiver moves. Others are exploring controlled diffusion approaches, where the laser beam is intentionally spread into a wider cone, sacrificing some speed in exchange for more flexible coverage.
There is also the challenge of standardization. WiFi is governed by IEEE standards (802.11) that guarantee interoperability between devices from different manufacturers. Indoor laser communication does not yet have equivalent standards, meaning devices from different manufacturers may not be compatible with each other.
Eye safety is another important consideration. Although the infrared laser used is low-power and generally classified as safe, strict regulations govern the use of lasers in environments where people are present. Systems must be designed with multiple safety layers to ensure that no beam can reach a person's eyes under any circumstances.
Experts estimate that the first commercial applications — likely in data centers and controlled industrial environments — could emerge within 3-5 years. Residential and office applications will likely take longer, depending on progress in beam tracking and standardization.
What the Key Players Are Saying
The system developed by the researchers is fundamentally different from any existing WiFi technology. Instead of using antennas that emit radio waves at frequencies of 2.4 GHz, 5 GHz, or 6 GHz (as conventional WiFi routers do), the transmitter uses a miniaturized semiconductor laser integrated directly into a silicon chip.
This laser emits an infrared light beam — invisible to the human eye — that carries data modulated in its intensity and phase. The receiver, positioned across the room, captures this beam with an equally miniaturized photodetector and decodes the transmitted data.
Miniaturization is the most impressive aspect of the technology. Laser transmitters have existed for decades in fiber optic telecommunications, but they have always been relatively large, expensive devices requiring precise alignment. The breakthrough demonstrated in 2026 places the entire transmitter system on a millimeter-scale chip — small enough to be integrated into smartphones, laptops, routers, and any other electronic device.
The chip uses advanced integrated photonics techniques, where optical waveguides, modulators, and the laser itself are fabricated on the same silicon substrate using processes compatible with conventional semiconductor manufacturing. This means that, in theory, mass production would be feasible using the same factories that already produce processors and memory chips.
Next Steps
Closing
Experts estimate that the first commercial applications — likely in data centers and controlled industrial environments — could emerge within 3-5 years. Residential and office applications will likely take longer, depending on progress in beam tracking and standardization.
