Quantum

Exail photonics solution provide strong technological advantage for the development of quantum communication setup, able to share quantum information between distinct parties – either locally or at distance -. One of the main current applications today is Quantum Key Distribution (QKD) and Exail has become a key player for Continuous-Variable QKD (CV-QKD), but also for Discrete-Variable QKD (DV-QKD).

Our modulation solutions with matching components for the transmitter side of the communication (Alice) and COH 90° optical hybrids demodulators enable to extract phase, amplitude and polarization on the receiver side (Bob). The company also has the capacity to integrate its modulation and demodulation solutions within complete systems, including its narrow linewidth single frequency laser as seeder laser.

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Atom laser-cooling refers to the ability to slow and trap individual neutral atoms with laser beams. Cold atoms have become a reliable and flexible platform to implement a wide variety of quantum technologies, and to investigate and simulate a large variety of quantum phenomena. Exail provides photonics solutions from the fully integrated and intelligent laser systems, down to the components (C-Band narrow line-width laboratory laser module, polarizing fibers, C-Band and 800 nm & 950 nm bands phase/amplitude LiNbO3 modulators and Amplitude LiNbO3 modulators). The company can thus support research labs, agencies or companies with the development of their quantum technologies with industry standards, whether they rely on neutral atoms, photons, or ions…

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The iXAtom research team (shared between Exail and LP2N lab) demonstrated in 2022 the first 3-axis quantum inertial sensor that allows to measure continuously the acceleration in 3 dimensions and for any orientation of the sensor. This is an important step towards the realization of an inertial navigation system using quantum technologies, and it leverages all of our state-of-the-art photonics solutions.

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Leveraging 30 years of advanced expertise in fiber-optic gyroscopes (FOG), operating from deep ocean to outer space, and 10 years in delivering quantum gravimeters from Mount Etna to Antarctica, Exail photonics solutions are able to operate under extreme conditions: they are resistant to external disruptions such as shocks, extreme temperatures, magnetism and vibrations.

Exail has been the world’s first company to commercialize industry-grade quantum sensors based on laser cooled atoms, including: the world most accurate atomic clock on the market, the Muclock, and the first world quantum gravimeter. The development of dedicated intelligent frequency-stabilized laser systems and Integrated micro-optics benches holds the key to such success. This state-of-the-art range of technologies are the results of Exail’s capability to select the adapted sub-components and to integrate them into turn-key instruments, now operated worldwide by non specialists.

The laser systems developed by Exail for atom manipulation and atom cooling/trapping are now available for a broad range of users, including non-specialists. Using such mature lasers for your experiments in quantum technology is a time saver. Some of the most promising innovative companies in the field are already using them, including Pasqal and Welinq.

Exail expertise in the manufacturing of integrated micro-optics benches lies on the ultra-accurate assembly of optical elements on glass breadboards, using 6D positioning. Thanks to its know-how in assembly epoxies, it can provide stable and robust devices, built to be used in extreme environment. Initially developed for the telecom industry (acknowledged by a Telcordia norm), the micro-optics setup were later adapted to support quantum technologies. They are now integrated into each Exail intelligent laser system (ILS).

Exail nurtures fruitful collaborations with leading research labs, which respond to both the needs of ambitious research and long-term industrial challenges. The iXAtom joint laboratory brings together Exail and researchers from the Laboratoire Photonique Numérique et Nanosciences – LP2N lab (CNRS / Institut d’Optique Graduate School / Université de Bordeaux) to develop quantum technologies for high end Inertial Sensors.

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