IQE and Quintessent have announced a partnership to establish the first large-scale commercial supply chain for quantum dot laser (QDL) and semiconductor optical amplifier (SOA) epitaxial wafers. Backed by an initial $0.5 million order for production wafers, this collaboration targets the growing demand for high-bandwidth, energy-efficient, and reliable optical interconnects in AI-driven infrastructure. The QDL technology addresses limitations of traditional lasers by offering longer lifetimes, improved efficiency, and resilience to environmental fluctuations.
This partnership builds on over a decade of collaboration and leverages innovations from the University of California, Santa Barbara’s research into quantum dot lasers. The teams have developed high-performance GaAs-based QDL epitaxial wafers on 6-inch substrates, enabling the production of hundreds of millions of edge-emitting lasers annually. These advancements mark a significant step forward in transitioning from copper to silicon photonics for optical connectivity in data centers, addressing the power and scalability challenges of next-generation AI applications.
Executives from both companies highlighted the significance of the partnership. IQE’s Interim CEO, Jutta Meier, emphasized their expertise in scaling high-volume epitaxial wafers, while Quintessent CEO Alan Liu pointed to the cost and performance advantages of quantum dot-based lasers in meeting the rising demand for optical connectivity. The partnership solidifies IQE and Quintessent’s positions as key players in AI and optical computing innovation.
• Key Points
• IQE and Quintessent establish the first large-scale QDL and SOA epitaxial wafer supply chain.
• Initial $0.5M order for production wafers through 2025.
• Quantum dot lasers offer superior lifetimes, efficiency, and reliability over traditional laser technologies.
• Developed 6-inch GaAs-based QDL wafers for high-volume production.
• Partnership builds on research from UC Santa Barbara and over a decade of collaboration.
“The performance, cost, and reliability advantages that quantum dot-based lasers and amplifiers enable over their quantum well counterparts are exactly what our customers are demanding to address the soaring need for optical connectivity in AI-driven compute,” said Alan Liu, CEO and Co-Founder of Quintessent.
- IQE is a global supplier of advanced compound semiconductor wafers and material solutions. Headquartered in Cardiff, UK, IQE has manufacturing operations in the UK, US, and Taiwan and is listed on the AIM Stock Exchange in London.
- Quintessent is a pioneer in quantum dot laser (QDL) technology and heterogeneous silicon photonics. Based on research breakthroughs from the University of California, Santa Barbara, Quintessent is at the forefront of scaling quantum dot-based semiconductor technologies to meet global market needs.
