The engine no one built

Fusion physics is proven. The engine that scales it doesn't exist. We're building it.

The Photon Brick is a standardized, generation-agnostic laser pump module built for surface-emitting lasers. DC power and coolant in, calibrated photons out. One architecture from defense to fusion.

Scroll
The Contrarian Bet

Everyone is building with edge-emitting lasers. We believe that's a ceiling, not a foundation.

The entire IFE diode community is discussing EEL bars. No one is discussing surface-emitting lasers. But EEL hits a triple structural ceiling at fusion scale: packaging complexity prevents $/W from reaching $0.01, accelerated life testing has blind spots at multi-billion-shot regimes, and one-dimensional bars cannot be standardized to fifty-million-unit procurement volumes.

Surface-emitting lasers solve all three. Wafer-level 2D arrays naturally match face-pumping geometry. Multi-junction VCSELs have reached 74% WPE. And the cost floor is lower — LLNL projects $0.007/W at scale.

No one is walking this path. Not because anyone has proven it doesn't work — but because VCSEL makers don't care about pumping, pump makers don't care about VCSELs, and vertically integrated players don't care about standardization.

Edge-emitting laser bars (EEL)
1D bar geometry
Precision-aligned stacks
Facet damage (COD) risk
Single-vendor packaging
The industry default. Triple structural ceiling at scale.
Surface-emitting laser arrays (SEL)
2D wafer-level arrays
Standardized face-pumping
No facet — no COD
Multi-source procurement
Wafer-level manufacturing. Semiconductor cost curve.
The Product

The Photon Brick

A standardized, modular, field-replaceable SEL-native laser pump module. Agnostic to semiconductor generation. Every unit reports its own degradation signatures — not just whether it's working, but how it's aging.

System DPSS subsystems, high-energy lasers, fusion drivers — the integrator's domain
Photon Brick The neutral, SEL-native packaging layer between the die and the system. Swappable across semiconductor generations. Monitored across its full operating life. No one occupies this layer today.
Semiconductor Epitaxy, die, surface-emitting arrays — VCSEL today, multi-junction VCSEL and PCSEL tomorrow

Generation-Agnostic

Accepts VCSEL, multi-junction VCSEL, or future PCSEL arrays from any qualified fab. Swap semiconductor generations without redesigning the system.

Per-Shot Degradation Intelligence

Every pulse classified across four failure mechanisms. Shift from scheduled replacement to condition-based maintenance. Fleet-scale degradation data compounds with every unit shipped.

Scale-Invariant

One Photon Brick is a pump module. A fusion power plant needs millions. What changes is the quantity, not the architecture.

The Business Logic

One cost curve. Three markets.

We do not choose between ambition and pragmatism. We fund one with the other.

$/W Cumulative volume →
Defense ~$0.40/W · High margin
Industrial & Science ~$0.10/W · Volume ramp
Fusion Energy ~$0.02/W · Planetary scale
01

Defense drives the first descent

808 nm Nd:YAG DPSS rangefinder and designator programs fund the early production doublings at 65–85% gross margin. No TEC. No COD failure mode. Every shot tracked.

~$100–200M/yr addressable
02

Science and industrial drive the middle

Same architecture, same manufacturing line. Scientific and industrial applications extend the cost curve through volume production — each doubling yields 40% cost reduction along a verified 60% learning rate.

Volume acceleration
03

Fusion is the natural endpoint

A single IFE plant requires approximately 50 million diode bars — nearly three times current global annual production. Fusion is not a leap of faith. It is the next point on a cost curve others are already paying to build.

Planetary scale

AI-driven electricity demand is compressing fusion timelines. The supply side hasn't gotten faster. The demand side is pulling it forward.

Structural Advantage

The structural position no incumbent will fill

Seven companies have the capability to build this layer. Six chose not to — standardizing pump modules erodes vertically integrated margins. The seventh orphaned its VCSEL pump division in a €5.76 billion write-down. The vacancy has persisted for seven years. We carry no such burden.

United States

Degradation data flywheel and defense compliance

Fleet-scale operating degradation profiles compound with every unit deployed — and cannot be compressed by latecomers. U.S. entity holds all IP, manages ITAR compliance, and serves as the primary interface with defense subsystem makers and program offices.

Taiwan

III-V ecosystem at 3–5× NRE cost advantage

Taiwan subsidiary taps the III-V compound semiconductor ecosystem with NRE at 3–5× lower cost than Western alternatives and 50% faster turnaround. The same supply chain that manufactures VCSEL wafers at global scale.

The neutral packaging layer in the value chain

We don't make dies. We don't build systems. Both sides treat us as infrastructure.

SEL Die Suppliers
III-V foundries · VCSEL fabs · Future PCSEL
Holonomy
Photon Brick
System Integrators
DPSS subsystem makers · Scientific labs · IFE developers
The Vision

Photon power as modular, economical, and ubiquitous as computing.

Defending frontlines. Driving discovery. Igniting fusion. The same building block, powering civilization's next century.

Let's talk.

Whether you're building DPSS defense subsystems, designing high-energy scientific lasers, developing IFE drivers, or looking for the next platform investment — one architecture, one cost curve.

Book a Call