Quantum Computing Inc.'s Innovative Photon Source Catalyst for Secure Communication Research

Quantum Computing Inc. Ships First Commercial Entangled Photon Source

Quantum Computing Inc. (QCi), a pioneering firm in integrated photonics and quantum optics technology, has taken a significant step in advancing the field of quantum communication. On June 17, 2025, QCi proudly announced the successful shipment of its first commercial entangled photon source, intended to bolster research in quantum networking and secure communications. This momentous order was received from a prestigious research institution in South Korea, signifying a vital transition from laboratory experiments to the commercial marketplace for QCi's proprietary quantum technologies.

The entangled photon source is engineered through a method known as Spontaneous Parametric Down-Conversion (SPDC) and utilizes a periodically-poled lithium niobate (PPLN) structure. This innovative device is designed as a standalone, broadband source and operates within the C-band telecommunication range, ensuring a perfect fit with existing fiber optics infrastructure. Its unique design focuses on stability and compatibility, allowing researchers to seamlessly integrate it into their ongoing experiments on quantum communication protocols.

Dr. Yong Meng Sua, QCi's Chief Technology Officer, expressed enthusiasm about the delivery, stating, "Our entangled photon sources are a vital component of our quantum cybersecurity platform, which received the esteemed Edison Award in 2024. We are thrilled to provide this advanced technology to researchers globally who are at the forefront of developing the future landscape of quantum communication."

The significance of QCi's entangled photon source extends beyond mere support for quantum communication protocols; it serves as a foundational enabler for innovations covered in a patent co-authored by Dr. Yuping Huang, QCi's Interim Chief Executive Officer, and Dr. Lac Nguyen. This patent lays out a scalable framework for secure quantum key distribution, greatly enhancing the potential for secure communications.

To further advance their offerings, QCi is actively exploring the miniaturization and enhancement of future iterations of these photon sources using thin-film lithium niobate (TFLN) technology at their foundry based in the U.S. Dr. Pouya Dianat, Chief Revenue Officer of QCi, commented, "This marks a crucial milestone in both the validation and commercialization of our technology. The successful shipment to Korea vividly illustrates our team's execution and strategic outreach in catering to the growing demands within the versatile quantum market. We are dedicated to providing a commercially available, high-performance entangled photon source as part of our diverse and innovative technology portfolio."

Quantum Computing Inc. (Nasdaq: QUBT) is committed to making quantum machines and TFLN foundry services accessible and affordable. Their product line is strategically designed to operate efficiently at room temperature and consume low power, ensuring affordability without compromising performance. QCi's core technologies facilitate unique advancements in numerous sectors, including high-performance computing, artificial intelligence, cybersecurity, and remote sensing applications.

As the quantum landscape continually evolves, the introduction of QCi's entangled photon source marks a pivotal juncture not only for the company but for the wider realm of quantum communication and cybersecurity. With rising interest and applications for integrated quantum systems, this innovative technology sets a solid foundation for future developments that promise to reshape the digital landscape for secure communications.