A Fiber Array (FA) is an optical component that aligns multiple optical fibers in a highly precise manner. Typically, the fibers are arranged in a straight line (1D) or in a matrix format (2D) to enable mass fusion splicing, coupling with optical chips, or integration into photonic. Fiber arrays (or fiber optic arrays or fiber array units) are one- or two-dimensional arrays of optical fibers. 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 Array (FA) is an array consisting of a bundle of optical fibers or a ribbon of optical fibers mounted on a substrate at specified intervals using a V-Groove substrate.