FAU (Fiber Array Unit) multifiber assemblies offer high-density, high bandwidth solutions for the new era of fiber optic applications, including telecommunications, data centers, silicon photonics, defense and medical applications. However, as the demand for. Fiber arrays (or fiber-optic arrays or fiber array units) are one- or two-dimensional arrays of optical fibers. OpTek System's proprietary laser technology offers end-to-end. and data center applications. With customizable V-groove chips and covers, and Corning's capability of developing and making specialty fibers, our FAU products can meet a wide variety of customer requirements on the inter-fiber core pitch and its precision, channel number, fib r type, and. Phillips Medisize, a Molex company, offers optical assemblies and arrays with extremely tight tolerance one-dimensional (V-Grooves) and two-dimensional arrays using patented manufacturing techniques. For applications requiring fibers spaced apart with higher accuracy, we can also supply precision hole arrays machined in fused silica.