Experiment with FHE acceleration in our new innovation Lab
Enable next-gen cryptography through optical computing.
Our Goal
Enable next-gen cryptography through optical computing.
Optalysys is building the hardware that will enable fully homomorphic encryption at scale.
The  Problem
Data is valuable. Data security is hard.

Data security creates a paradox.

The most valuable data is the data that can’t be shared.

Fully homomorphic encryption solves this problem by allowing truly blind computation.

However, this requires a massive shift in computing power.

The Solution

Go beyond the limits of electronics with optics.

Fully homomorphic encryption belongs to a class of problems that cannot be solved efficiently using standard Von Neumann architectures.

We combine optical device physics with bespoke supporting electronics to create the ultimate FHE accelerator.

One System

Every Solution

FHE contains a range of implementations that cover different data applications. However, all of these methods work on the same fundamental principles.

Optalysys technology targets the intensive calculations that are common to all FHE schemes, providing acceleration across all confidential computing solutions.

A Photonic Chiplet

Optalysys Etile is a hybrid photonic-electronic chiplet designed around the properties of optical processing.


Pairing digital interfaces with silicon photonics technology, Etile integrates with conventional digital electronics in multi-chip modules, bringing the huge advantages of optical processing to where they are needed in the most intensive compute tasks.


Combined digital-photonic infrastructure on a single die. Optical modulators and detectors convert information to and from the processing environment.

Designed for digital integration. High performance chip interfaces allows Etile to work with existing multi-chip-module technology.

Highly scalable. Multiple photonic processing stages can fit on a single die. Calculations can be scaled over multiple Etiles.

Lower power consumption and thermal emission than electronic equivalents.

Massively flexible. The output of the photonic calculation can be used to construct transforms of different sizes.

Standard PCIe interface for easy integration with supporting hardware.

The Science

At the heart of Etile is a photonic circuit

We control light in silicon photonic waveguides using existing modulation technology.

We can convert complex-valued digital data directly into an optical representation.

Collectively emitting these encoded beams into a free-space environment results in a near-instantaneous transformation of the data through optical interferences.

This calculation is near-instantaneous, consumes no power, and generates negligible heat.

Many of these free-space processing stages can be constructed on a single die.

The optical signals containing the transformed data are then converted back into digital form. This digital data can then be recombined into transform operations of greater size and precision.

Ultra-high speed operation provided by the optical transform.

Etile is designed using standard high-speed silicon photonic technologies and foundry PDKs, ensuring consistent and exceptional performance.

All the relevant intellectual property is owned by Optalysys.

Etile is a modular stand-alone technology – the fastest and most efficient transform processor.

The device physics of Etile perform an inherently complex-valued operation. The free-space transform stage can be thought of as being to FHE what the transistor is for conventional electronics.

Optalysys Enable leverages the power of Etile to provide the massive vector transforms needed for fast and efficient FHE.

In the Enable system, Etile is paired with custom architecture and logic designed around the unique needs of FHE. A dedicated FHE-focused instruction set allows ready low-level interfacing with FHE libraries.

Rounding out the platform is high-density chip-to-chip communication, solving the problem of data transfer that impedes conventional rack-scale FHE solutions.

The result is a single MCM accelerator unit that vastly outperforms a HPC cluster with respect to FHE compute.


The largest operations in FHE can now be performed on-chip, allowing efficient calculation streaming and eliminating interfacing constraints.

Flexible architecture and memory design is intended to support all major FHE schemes.

Parallel Etile processing allows Large Fourier and Number-theoretic transforms in a matter of nanoseconds, vastly outstripping conventional electronics.

A native interface for FHE primitives. Hardware instruction set designed for low-level integration with FHE libraries and APIs.

Achieves FHE performance exceeding that of conventional cluster-scale systems on a single MCM. Designed for hyperscale environments.

Standard PCIe interface for easy integration with supporting hardware.

Based on highly efficient optical computing, lowering lifetime operating costs.

Flexible transform reconstruction provided by Etile allows Enable to target the full scope of FHE schemes under different cryptographic parameters.

Enable is designed to provide developers with the power of photonics, with no knowledge of optical computing needed.

Designed from the ground up to facilitate continuous integration with ongoing standardisation and development in FHE.

A one-stop accelerator solution for fully homomorphic encryption in the cloud.

Beta Access

Enable is coming

Our beta program featuring simulators, software and early-access hardware is available now.


Sign up with your email address to receive news and updates from Optalysys.

Please enable JavaScript in your browser to complete this form.
We respect your privacy.