Enlightra Demonstrates O-Band Comb Laser for AI Optical Interconnects at ECOC 2025
At this year’s European Conference on Optical Communication (ECOC 2025), Enlightra showcased its O-band comb laser, integrating a precision pump source with Enlightra’s proprietary silicon-nitride (SiN) ring-resonator technology. The demonstration highlighted the exceptional stability and spectral uniformity of Enlightra’s platform, confirming its readiness for energy-efficient, high-capacity optical interconnects in next-generation AI and GPU systems.
.jpg)
The live setup ran continuously and stably throughout the exhibition, validating the maturity of Enlightra’s SiN-based resonator platform and its suitability for ELSFP-CPO (Embedded Laser Small Form-Factor Pluggable – Co-Packaged Optics) architectures. These compact, power-efficient laser sources are key to the emerging optical I/O revolution across large-scale AI clusters and data-centre networks.
“Our O-band comb laser operated with outstanding stability throughout ECOC,” said Dr Maxim Karpov, Co-CEO of Enlightra. “This demonstration proves that our silicon-nitride resonator technology has reached a level of performance and reproducibility suitable for real-world integration in optical interconnects.”
Dr John Jost, Co-CEO of Enlightra, added: “We’ve been working for years to bring integrated frequency-comb sources from the lab to practical deployment. What we showed in Copenhagen is a clear signal that Enlightra’s platform is not only technically sound but commercially ready.”
During the event, the Enlightra team held numerous technical and business discussions with Hyperscalers, module manufacturers, and GPU system developers, all seeking scalable laser solutions for terabit-class interconnects.
“ECOC 2025 was an important moment for Enlightra,” said Robert Hughes, Business Development Lead. “It showed that our technology delivers the stability and precision the market has been waiting for. The level of engagement from potential partners confirms that the industry is ready for integrated comb-laser sources, and so are we.”
Enlightra’s technology leverages CMOS-compatible, low-loss silicon-nitride photonics to generate broadband optical frequency combs spanning multiple wavelength bands. This approach enables multi-channel laser sources that dramatically reduce power consumption, footprint, and cost compared with discrete-laser arrays.
The company’s next milestones include extending its O-band platform into C- and L-band operation, developing multi-channel ELSFP-CPO modules, and scaling manufacturing through strategic partnerships.
“ECOC 2025 confirmed that the future of optical interconnects will be powered by integrated comb lasers,” concluded Dr Karpov. “And Enlightra is positioned to lead that transition.”