Sivers and SemiNex Launch $3.4M InP Light Source Program for AI Data Centers

Sivers Semiconductors and SemiNex Corp have launched a joint development program to create next-generation indium phosphide (InP) light sources for AI data center interconnects. The initiative aims to address critical bandwidth constraints as AI infrastructure scales toward massive "AI factories."

Initially valued at approximately $3.4 million, the collaboration between Swedish-based Sivers and U.S.-based SemiNex focuses on high-power external laser sources designed for co-packaged optics (CPO). The technical scope of the program includes the development of high-channel-count distributed feedback (DFB) arrays and semiconductor optical amplifier (SOA) gain stages. The companies target customer sampling and early production ramps for the second half of 2027.

The Optical Bottleneck

As AI data centers expand, the optical layer has emerged as a primary bottleneck for system performance. To combat this, the industry is shifting optical components from the traditional faceplate directly into the package via Co-Packaged Optics. This architectural shift necessitates light sources that provide higher power per wavelength, improved wall-plug efficiency, and superior thermal stability to support the massive wavelength-multiplexed links required by modern compute clusters.

Ronald Moore, CEO of SemiNex, noted that the optical layer is currently becoming the primary constraint on how far AI infrastructure can scale. This pressure is driven by the need for seamless, high-speed data movement between compute and memory units, where traditional optical solutions are struggling to keep pace with silicon photonics and memory advancements.

Industry Implications

Developing advanced InP light sources is essential for reducing energy consumption and increasing bandwidth in hyperscale environments. By optimizing the light source, Sivers and SemiNex intend to remove the physical constraints that limit the efficiency of data movement. Vickram Vathulya, CEO of Sivers Semiconductors, stated that these advanced light sources are as crucial to next-generation optical networking within AI factories as the compute, memory, and silicon photonics elements themselves.

Future Outlook

Industry observers will be watching the 2027 sampling window to see if these InP sources can meet the rigorous thermal and power demands of CPO environments. While the program is currently in the development phase, the successful deployment of high-channel-count DFB arrays would mark a significant step toward the high-density interconnects required for the next generation of AI hardware. These advancements are critical as the industry moves toward a future where the interconnect is no longer the limiting factor in AI training and inference speeds.