Quantum Computing Inc. ships first commercial entangled photon source

19 Jun 2025

Delivery made to South Korea-based research institution, for quantum communications research.

Quantum Computing Inc., an integrated photonics and quantum optics technology company, has announced the successful shipment of its first commercial entangled photon source to support research in quantum networking and secure communications.

The Hoboken, NJ-based based firm said the order – placed by a research institution in South Korea – “marks a milestone in QCi’s transition of proprietary quantum technologies from the lab to commercial markets.”

The product is a broadband, standalone entangled photon source built on Spontaneous Parametric Down-Conversion using a periodically-poled, bulk format lithium niobate structure.

Designed for stability and compatibility, the source operates in the C-band telecommunications range and is compatible with current fiber optics infrastructure. It is designed to “integrate seamlessly into research environments advancing quantum communication protocols,” the firm stated.

Edison Award-winner

“Our entangled photon sources are an integral part of our quantum cybersecurity platform, which was recognized with the Edison Award in 2024,” said Dr. Yong Meng Sua, CTO at QCi. “We’re excited to now deliver this technology to global users who are working to shape the future of quantum communication.”

QCi’s entangled photon source is an enabler of innovations outlined in a patent co-authored by QCi’s Interim CEO Dr. Yuping Huang and Dr. Lac Nguyen, which established a scalable architecture for secure quantum key distribution. Leveraging PPLN in bulk format, QCi says it is planning to further miniaturize and enhance future generations of these sources using thin-film lithium niobate (TFLN) technology at its U.S.-based foundry.

“This marks a significant step in validating and commercializing our technology,” said Dr. Pouya Dianat, Chief Revenue Officer. “This is a foundational product for our quantum communications roadmap, with this shipment to Korea demonstrating the reach of our strategy in servicing the versatile quantum market.

“This shipment demonstrates growing market interest in integrated quantum systems, and we are excited to offer a commercially available, high-performance entangled photon source as part of our differentiated, innovative technology portfolio.”

QCi offers a range of quantum machines and TFLN foundry services. Its products are designed to operate at room temperature and low power “at an affordable cost”. The company’s portfolio of core technologies and products offer capabilities in the areas of high-performance computing, artificial intelligence, and cybersecurity, and remote sensing applications.