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The companies have achieved a prototype laser vibrometer module by integrating their optical integration technologies. In the collaboration, OKI’s silicon photonics technology and Fraunhofer HHI’s expertise in hybrid optical integration and packaging are combined. The prototype’s operation has been confirmed, establishing a technical foundation for developing smaller, higher-performance and more energy-efficient optical sensors.
The results were announced at Photonics Days 2026 Berlin, held October 7 and 8. OKI CTO Yoichi Kato made a keynote presentation on the progress of hybrid optical integrated circuits and the company’s photonics research and outlook for the technology and collaboration with Fraunhofer HHI. The prototype was also shown at the institute’s booth. A presentation on the technical specifics was given by an OKI researcher in a dedicated oral session.
The partnership overcomes a restriction in silicon photonics. It creates compact optical circuits, but it is still difficult to attach semiconductor lasers as light sources. To overcome that, the two companies signed a full five-year joint research pact on December 15, 2025.
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The work supports OKI’s broader development of compact laser vibrometers, optical fiber sensors, optical biosensors and low-power optical communication transceivers. These sensing and communications at the network edge technologies have the potential to enable much safer and more resilient social infrastructure.
Established in May 2026, as part of its Management Plan 2031, OKI is committed to drive high-growth into the market by leveraging its proprietary technology. OKI will accelerate the development of photonics business and social challenges by collaborating with Fraunhofer HHI to enhance OKI’s competencies and the value of application solutions.
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