Light Links Raises $6M to Scale Optical Wireless

Light Links has closed a $6M pre-seed round to scale production of Wi-OW, its optical wireless network for industrial automation, robotics, defense, and secure enterprise environments. Outlander led the financing, with Anorak, Output Capital, Mana, Crosscourt, and other dual-use and defense investors participating.

The financing matters because Light Links is not offering a faster version of the same radio network. It is asking operators to move critical wireless traffic onto invisible infrared light, preserving mobility while trying to deliver the predictable behavior that factories and defense systems expect from a cable.

What Happened

The August 24 announcement says Light Links will use the capital to expand production and broaden deployments across industrial automation and defense. No valuation was disclosed, and the company did not publish a total-funding figure, production target, or deployment count.

The named investors fit the operating challenge. Outlander led the round, while Anorak Ventures, Output Capital, Mana Ventures, and Crosscourt Ventures participated alongside unnamed dual-use and defense-tech investors. Their capital now has to carry Light Links through the expensive distance between a working optical network, manufacturable hardware, and repeatable installation in sites where downtime is not an interesting technical finding.

Light Links was founded in 2024 and is based in Campbell, California. Founder and CEO Firouz Vafadari leads the current team with CTO Heinz Willebrand, CSO J.J. Garcia-Luna-Aceves, and COO Jeremy Chan-Youker. San Francisco Business Times and Berkeley SkyDeck materials identified Tyler Morton as a co-founder and then-CTO in 2025; current company materials do not list Morton in an operating role, so his present association remains unclear.

Why Industrial Wireless Is Still an Operating Problem

Factories want wireless because robots, sensors, vehicles, and changing production lines do not stay politely attached to a wall jack. The problem arrives when mobility meets control. A network that is fast on average can still fail an operator if a control message collides, retries, or arrives after the machine has already moved.

NIST's industrial wireless work describes interference, competing traffic, multipath, jamming, reliability, and latency as persistent barriers inside factory environments. Metal, machinery, moving obstructions, and many overlapping networks turn radio performance into a systems-engineering problem, especially when the link carries sensing, robotic coordination, or safety-related traffic.

That market pressure gives Light Links a sharper thesis than "laser Wi-Fi." The company is betting that the useful part of wireless is freedom from cabling, while the weak part is contention inside shared radio spectrum. Wi-OW tries to separate those two properties rather than accepting them as a package.

How Wi-OW Uses Light Instead of Radio

Light Links says Wi-OW transmits data through diffused invisible infrared laser light. The signal reflects from walls and ceilings, allowing devices to communicate even when the direct path is blocked, while standard Ethernet connects the optical network to existing infrastructure. The company also says the design uses components already produced at scale for fiber-optic networks.

Light Links reports up to 25 Gbps of symmetrical throughput and round-trip latency measured in microseconds. It says each device receives a guaranteed transmission window instead of competing for airtime and retrying after collisions. Those numbers and scheduling claims come from Light Links, not an independent benchmark, so customers will need to judge how performance holds across layout changes, dust, sunlight, moving equipment, installation choices, and maintenance conditions.

The first commercial proof is also company-reported. Light Links says an unnamed Fortune 50 customer is replacing Wi-Fi with Wi-OW in live operations. The customer, site, deployment size, and measured results were not disclosed, but an installed replacement is a more meaningful test than a controlled demonstration because it exposes the network to the facility, workflow, and support burden that determine whether infrastructure survives procurement.

The Defense Case Raises the Stakes

Radio creates a different risk profile in defense. Transmissions can reveal activity, face intentional jamming or spoofing, and operate under restrictions around sensitive electromagnetic environments. Light Links argues that an optical signal contained within a physical space reduces conventional RF exposure while still allowing equipment to communicate without a cable.

The company describes Wi-OW as suitable for RF-silent communications and says it is developing optical identification of friend or foe for drone platforms. These capabilities should be treated as development and company performance claims, not as proof of certification or broad field deployment. Defense buyers will care about environmental resilience, integration, security validation, logistics, and behavior under adversarial conditions as much as peak throughput.

That is where the same technology meets two buying committees with different language. A factory buyer may start with downtime, deterministic behavior, installation cost, and maintenance. A defense customer may begin with emissions, detection, jamming, qualification, and mission assurance, yet both eventually ask whether the network performs predictably when the environment stops cooperating.

What the $6M Must Prove

Pre-seed capital usually buys learning, but hardware infrastructure has a habit of making every lesson expensive. Light Links must increase production, build an installation playbook, support Ethernet integration, and show that optical links can be deployed without turning every customer site into a custom engineering engagement. It also has to convert an unnamed Fortune 50 validation into evidence that other operators can evaluate.

The team gives the company credible networking and optical depth. Vafadari's background spans computer networks and optical wireless research, while the current leadership page places free-space optical experience, networking research, and company-building roles around the product. The investor group is financing that technical base, but the commercial result will depend on manufacturing discipline, field support, qualification, and the patience required to sell infrastructure into buyers who are punished for avoidable surprises.

Light Links has chosen a useful contradiction to attack. Wireless became essential because cables constrain movement, yet the applications demanding the most movement increasingly need cable-like certainty. If Wi-OW can preserve the first property while proving the second, the company will have more than a clever alternative to Wi-Fi; it will have a new networking layer for machines whose next action cannot wait for a retry.