A Fiber Array (FA) is an optical component that aligns multiple optical fibers in a highly precise manner. Whether integrated into planar lightwave circuits (PLCs), optical switches, or high-speed transceivers, FAs play a vital role in ensuring. A Fiber Array, commonly abbreviated as FA, is a critical interface component in Silicon Photonics (SiPh) packaging, Photonic Integrated Circuits (PIC), and Co-Packaged Optics (CPO) architectures. Comprising a V-groove base plate, cover plate, optical fibers, and adhesive, its core advantages lie in high-precision fiber alignment and low-loss. Fiber arrays (or fiber-optic arrays or fiber array units) are one- or two-dimensional arrays of optical fibers.