2D Fiber Array for Silicon Photonics, CPO & High-Density Optical Interconnect 1. Product Overview The GracyFiber 2D Fiber Array is a high-density optical interface designed for advanced photonic packaging where a conventional linear fiber array cannot provide sufficient optical I/O density. Using a two-dimensional matrix fiber architecture , the array enables large numbers of optical channels to be arranged within a compact footprint for photonic engines, silicon photonics