Akhetonics

The World’s First<br>Photonic Reasoning<br>Processor

Our mission

Our mission

Akhetonics is building the RPU, the first Reasoning Processing Unit. Modern AI has hit a wall: reasoning, verification, and optimization workloads demand extreme single-threaded performance that today's electronic chips simply can't deliver. Our all-optical digital processor breaks that barrier through near latency-free optical memory and THz speeds, bringing unprecedented performance and energy efficiency to the hardest problems in AI, automated reasoning and operations research, built entirely on a sovereign European supply chain.

Our Optical Processor

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Optical Data Interface<br>Our interface to the world is optical. Data enters and leaves optically through the network and remains in the processor in the optical domain even while processed, never converting to an electronic signal.

Cross Domain Processor<br>The heart is the all-optical XPU, which acts as the conductor and controls the flow of information between memory, network and RFUs.

Volatile Memory<br>Each XPU has its own optical local and stack memory to aid in processing. They are the main way how results are accumulated and passed on from operation to operation.

Non-Volatile Memory<br>Code is stored in a separate read-only optical memory, to ensure speed and security during operation. For large amounts of data, the global optical memory acts as the storage for anything from image data to large language models.

Digital, Analog & Quantum​<br>Optical digital, analog and quantum computing share almost all characteristics in a single photonics platform. From analog vector matrix multiplication, quantum feed-forward to digital logic – in the first cross-domain computer.

Dynamic Systolic Array​<br>The RFUs are special purpose optical accelerators for either digital, analog or quantum operations, which are dynamically combinable. Working in parallel, they act as the orchestra to the conducting XPU.

THz Clocking<br>Optical processors can switch at neck breaking speeds. Instead of GHz clock speeds found in electronics, the optical computer will dominate the THz domain.

Powering Up<br>Even an all-optical computer needs electricity to power lasers, amplifiers and tuners. However, the data itself passing through the processor never touches the electronic domain.​

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Optical Data Interface

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Cross Domain Processor

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Volatile Memory

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Non-Volatile Memory

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Digital, Analog & Quantum

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Systolic Array

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THz Clocking

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Powering Up

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Our interface to the world is optical. Data enters and leaves optically through the network and remains in the processor in the optical domain even while processed, never converting to an electronic signal.

The heart is the all-optical XPU, which acts as the conductor and controls the flow of information between memory, network and RFUs.

Each XPU has ist own optical local and stack memory to aid in processing. They are the main way how results are accumulated and passed on from operation to operation.

Code is stored in a seperate read-only optical memory, to ensure speed and security during operation. For large amounts of data, the global optical memory acts as the storage for anything from image data to large language models.

Optical digital, analog and quantum computing share almost all characteristics in a single photonics platform. From analog vector matrix multiplication, quantum feed-forward to digital logic – in the first cross-domain computer.

Optical processors can switch at neck breaking speeds. Instead of GHz clock speeds found in electronics, the optical computer will dominate the THz domain.

Even an all-optical computer needs electricity to power lasers, amplifiers and tuners. However, the data itself passing through the processor never touches the electronic domain.

Our Optical Technology

1. Optical Nonlinearities<br>A computer that can only perform linear operations is not very interesting. Every general-purpose processor needs to be able to perform non-linear operations – which are notoriously hard in optics, even more so when doing it on a chip. Our technology is built around our know-how to generate these nonlinearities in a photonic integrated circuit (PIC). Solving this has been key to our ability to create our all-optical cross-domain compute capabilities.

2. Optical Computing Building Blocks<br>With our integrated non-linear optical components, we can create much more complex devices. In the digital domain, it allows us to create optical logic gates, in the analog domain, we can create complex mathematical operations. For quantum, it allows us to create an all-optical feed-forward for continuous variables. And, of course, it allows us to create optical memory.

3. Photonic compute circuits<br>By combining these all-optical computing building blocks, we can create anything. Be it a general-purpose...