SAN JOSE, Calif. and HOBOKEN, N.J. — November 11, 2025 — Leads & Copy — POET Technologies Inc. and Quantum Computing Inc. (QCi) are collaborating to develop 400G/Lane thin-film lithium niobate (TFLN) modulator-based 3.2Tbps engines.
QCi will use its expertise with TFLN to integrate high-performance 400G/Lane modulators with the POET Optical Interposer™ platform technology. The engine will provide data-transfer speeds at 3.2Tbps and beyond, meeting the demand of AI systems networks and datacenter hyperscalers.
Dr. Yong Meng Sua, Chief Technology Officer at QCi, said that to achieve a commercially viable optical modulator that operates at 400G/Lane requires an integration platform such as the POET Optical Interposer. Sua added that combining POET’s platform technology with QCi’s integrated photonics designs results in a solution that addresses the global demand for more compute power.
POET will fund the development of the 400G/Lane modulator, which is targeted for completion in the second half of 2026, according to the terms of the agreement.
POET Executive Chairman and CEO Dr. Suresh Venkatesan said the work with QCi keeps POET at the forefront of AI connectivity development and that POET is committed to finding ways to innovate even as it executes its sales strategy for existing products. Venkatesan added that a 400G/Lane optical modulator that incorporates TFLN will be a step forward for the industry.
TFLN is a resilient and efficient material that has proven to be ideal for chip-scale photonic integration. QCi is one of the few companies that have demonstrated processes that can make TFLN adaptable for advanced wafer-level manufacturing. The 400G/Lane modulator will double the speeds of the fastest networking devices currently in the marketplace.
According to the LightCounting report “Ethernet Optics: Cloud, Enterprise and Telecom”, September 2025, the global market size for 3.2T in pluggable and CPO formats is projected to reach close to USD $12 billion by 2030.
POET Technologies is a design and development company offering high-speed optical engines, light source products, and custom optical modules for the artificial intelligence systems market and hyperscale data centers. Its patented POET Optical Interposer™ platform enables integration of photonic and electronic devices using semiconductor manufacturing techniques.
Quantum Computing Inc. is an integrated photonics and quantum optics technology company that provides quantum machines and foundry services for the production of photonic chips based on thin-film lithium niobate (TFLN). QCi’s products operate at room temperature and low power. The Company’s portfolio of core technologies and products offer capabilities in high-performance computing, artificial intelligence, and cybersecurity, as well as remote sensing applications.
Contacts:
Adrian Brijbassi (POET Technologies Inc.)
adrian.brijbassi@poet.tech
Thomas Mika (POET Technologies Inc.)
tm@poet.tech
Rosalyn Christian/John Nesbett (Quantum Computing Inc.)
qci@imsinvestorrelations.com
Source: POET Technologies Inc.
