SEALSQ to Acquire Quantum Interconnect Developer Miraex
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SEALSQ Corp has signed a Letter of Intent to acquire Miraex SA, a developer of photonics-based quantum interconnect solutions, to strengthen its position in the rapidly developing quantum technology sector. The acquisition would be carried out using the SEALSQ Quantum Fund as part of SEALSQ’s strategic investment program to build a fully integrated “Quantum Vertical Stack.” Miraex specializes in converting quantum information using a photonic integrated circuit platform based on Thin Film Lithium Tantalate (TFLT) technology, operating across distributed quantum computing, quantum sensing, and quantum networking. This technology is crucial because it enables the connection between microwave frequencies used by quantum processors and optical frequencies used for quantum communication; SEALSQ states it is a foundational requirement for any distributed quantum architecture. The transaction is expected to be finalized by the end of June 2026, pending due diligence and regulatory approvals. SEALSQ to Acquire Miraex: Quantum Interconnect Technology Miraex’s expertise centers on bridging the gap between quantum processors and the networks needed to connect them, utilizing a Thin Film Lithium Tantalate (TFLT) platform for photonic integrated circuits. This technology is significant because it enables the conversion and transmission of quantum information, a process essential for distributed quantum computing, sensing, and networking. The acquisition targets a company uniquely positioned within the emerging quantum ecosystem; Miraex has developed a patent portfolio covering electro-optical microwave-optical transduction schemes and traveling wave transducer designs, achieving high RF-to-optical conversion efficiency. They have demonstrated the ability to generate photon entanglement across a frequency range separated by a factor of 10,000, a capability with substantial implications for secure quantum communications and distributed quantum processing. SEALSQ’s vision, according to company materials, is to encompass the entire quantum technology spectrum, from quantum-secure semiconductors to quantum interconnectivity, and Miraex directly addresses the latter. “Miraex represents the kind of foundational quantum asset we have been seeking to complete our Quantum Vertical Stack,” said Carlos Moreira, CEO of SEALSQ. Beyond terrestrial applications, integrating Miraex is expected to accelerate SEALSQ’s Quantum Space Commercial Quantum Spatial Orbital Cloud (QSOC) initiative. The TFLT PICs are compact, power-efficient, and radiation-tolerant, making them ideally suited for satellite payloads and nanosatellites within the QSOC constellation. Daniel Brau, CEO of Miraex, expressed enthusiasm for the potential partnership, stating, “We are excited about the signing of this LOI and the opportunity to join SEALSQ through the Quantum Fund. We are proud of what we have achieved.” Miraex’s TFLT PIC Platform Enables Three Quantum Verticals The pursuit of practical quantum technologies currently hinges on overcoming the challenges of interconnectivity; scaling quantum processing power requires linking individual quantum processors, while realizing a quantum internet demands robust communication networks. Several approaches are being explored, but a growing focus centers on photonics as a key enabling technology, and Miraex SA is positioning itself as a central player in this emerging field. The Swiss company develops photonics-based quantum interconnect solutions, utilizing a technology layer designed to convert, transmit, and link quantum information between processors and networks, a capability increasingly vital as quantum systems grow in complexity. Miraex distinguishes itself through its Thin Film Lithium Tantalate (TFLT) Photonic Integrated Circuit (PIC) platform. This platform underpins the company’s operations across three distinct, yet interconnected, quantum verticals: Distributed Quantum Computing (DQS), Quantum Sensing, and Quantum Networking. DQS aims to achieve scalable computational power by interconnecting distributed quantum processors, while Quantum Sensing focuses on delivering solutions for applications like navigation, geophysics, and defense using distributed quantum sensing based on photonic entanglement. The third vertical, Quantum Networking, envisions building globally entangled networks forming the foundation for a future quantum internet. The company’s patent portfolio, covering electro-optical and optical-microwave transduction schemes, delivers what they claim is high RF-to-optical conversion efficiency. Our TFLN PIC platform has been designed from the ground up to be the connective tissue of the quantum ecosystem. Miraex represents exactly the kind of foundational quantum asset we have been seeking to complete our Quantum Vertical Stack. Carlos Moreira, CEO of SEALSQ Photonics-Based Technology Supports Quantum Spatial Orbital Cloud SEALSQ’s planned acquisition of Miraex SA promises to bolster the development of a crucial component for realizing a fully connected quantum future: the ability to reliably transmit quantum information between processors and networks. This technology directly addresses a key challenge in scaling quantum computing, the need to link distributed quantum processors into a cohesive, powerful system. The company’s innovations extend beyond simple connectivity, encompassing applications in distributed quantum sensing and the foundations of a future quantum internet, all underpinned by a growing patent portfolio covering electro-optical transduction schemes. Miraex’s Thin Film Lithium Tantalate (TFLT) Photonic Integrated Circuits (PICs) are uniquely suited for space-based infrastructure, offering a combination of compactness, power efficiency, and crucially, radiation tolerance. These attributes are essential for satellite payloads where size, energy consumption, and operational reliability are paramount. The small form factor of the PICs also allows for deployment on smaller satellites, like nanosatellites and CubeSats, within the planned QSOC constellation. Their photonics-based quantum interconnect solutions are not just complementary to our roadmap, they form a critical interconnect layer linking our quantum computing, quantum networking, and post-quantum cryptography capabilities into a more coherent architecture. Carlos Moreira, CEO of SEALSQ Electro-Optical Transduction Achieves High RF-to-Optical Conversion The pursuit of scalable quantum technologies increasingly relies on efficient methods of connecting disparate quantum systems, and Miraex SA has developed a platform centered on converting radio frequency (RF) signals into optical signals, and back, with remarkably high fidelity. This electro-optical transduction is crucial for bridging the gap between superconducting quantum processors, which operate in the microwave range, and optical fibers used for long-distance quantum communication. This is accomplished through their patent portfolio covering direct electro-optical microwave-optical and optical-microwave transduction schemes, as well as traveling wave transducer designs. This technology is particularly relevant for SEALSQ Corp’s ambitions to deploy quantum-secure capabilities in Low Earth Orbit (LEO) via their Quantum Spatial Orbital Cloud (QSOC) initiative. “Their small form factor enables deployment on nanosatellites and CubeSats within the QSOC constellation,” highlighting the practical advantages for space-based quantum infrastructure. We are proud of what we have achieved. Our TFLN PIC platform has been designed from the ground up to be the connective tissue of the quantum ecosystem, linking quantum processors, quantum sensors, and quantum networks into a unified infrastructure. Daniel Brau, CEO of Miraex Source: https://www.globenewswire.com/news-release/2026/03/24/3261391/0/en/SEALSQ-Signs-Letter-of-Intent-to-Acquire-100-of-Miraex-a-Swiss-Quantum-Interconnect-Platform-Company.html Tags: