Optical interconnect startup Xscape Photonics has secured $37 million in an extension of its Series A funding, bringing the total to $81 million. This new capital doubles the company's valuation and coincides with the debut of FalconX, a device designed for ultra-fast, high-capacity data transmission in AI data centers.
The round was led by Addition, with continued support from IAG Capital Partners and Nvidia Corp.
Xscape is developing a novel interconnect to link the thousands of graphics processing units (GPUs) essential for AI workloads. The company argues that current interconnects, limited by electrical signal bandwidth over copper wires, create a bottleneck for AI performance. Xscape's solution utilizes silicon photonics, employing lasers to transmit data, which offers significantly greater bandwidth and speed.
FalconX, Xscape's inaugural product, is an external laser small form-factor pluggable device. It can emit eight wavelengths of light simultaneously, enabling multiple data streams on a single link and dramatically increasing data transmission volume.
According to CEO Vivek Raghunathan, existing interconnects are a primary constraint on AI performance, leaving powerful chips underutilized due to slow data delivery. FalconX aims to resolve this by delivering multi-terabits-per-second bandwidth, effectively creating a "data highway" for AI infrastructure.
Xscape plans to further enhance its platform by scaling to 16, 32, 64, and eventually 128 wavelengths. A prototype, CombX, demonstrating 16 wavelengths, has already been developed in collaboration with Tower Semiconductor Inc.
Industry leaders like Addition founder Lee Fixel recognize the critical role of advanced photonics in AI infrastructure, highlighting Xscape's innovations in addressing bandwidth limitations.