AES Semigas


27 March 2024

Quintessent raises $11.5m in oversubscribed seed funding round

Quintessent Inc of Santa Barbara, CA, USA, which specializes in heterogeneous integration of quantum dot lasers and silicon photonic integrated circuits (PICs), has closed on just over $11.5m in an oversubscribed seed funding round led by Osage University Partners (OUP), joined by new investors including M Ventures, and existing investors Sierra Ventures, Foothill Ventures, and Entrada Ventures.

The proliferation of artificial intelligence (AI) is catalyzing a rapid transition and growth of the world’s computing infrastructure from general purpose architectures to ones specifically designed for accelerated computing. This new paradigm of computing requires the orchestration of massively parallel units of distributed but interconnected compute resources at the cluster or data-center scale. As a result, data movement efficiency of the interconnecting fabric is a critical bottleneck to accelerating system performance at scale.

Achieving sustainable growth of computing and data movement will require new technologies and architectures that can match the rapid progression of bandwidth (density) scaling from computing and switching interfaces while simultaneously minimizing power, latency, fiber count, chip size and total cost of ownership, says Quintessent. In addition, to enable practical deployment at scale and ensure quality of service, significant improvements in reliability relative to today’s solutions are required, the firm adds.

“This new funding allows us to grow our team and accelerate the development of highly scalable and highly reliable optical interconnects that transcend the scaling limitations of incumbent solutions, built on top of a unique technology stack including our multi-wavelength comb laser,” says CEO & co-founder Alan Liu.

“Novel chip-scale laser architectures have rarely been the focus of today’s photonics companies because the industry is still so nascent and focused in on engineered solutions. But at OUP, as we observed various AI and computing hardware companies push the limits of bandwidth and packaging with optical systems, we found they were all challenged by the scaling and cost of their optical laser source,” says OUP partner Manny Stockman, who will be joining Quintessent’s board of directors. “Quintessent’s plans to productize interconnect solutions powered by multi-wavelength quantum dot comb lasers may become one of the most critical product developments in photonics at just the right time to intercept the surging demand for optical connectivity at the largest computing corporations in the world.”

See related items:

Tower announces first heterogeneous integration of QD lasers on SiPho foundry platform

Tower and Quintessent partner to create foundry silicon photonics platform with integrated quantum dot laser

Tags: Silicon photonics Quantum dot lasers



Book This Space