What Is FA (Fiber Array)?
Oct 08, 2023
Fiber Array (FA), using a V-G-groove substrate to install a bouquet of fiber or a fiber band in accordance with the regulations on the substrate, which is composed of the array.
The optical fiber array in optical communication mainly includes substrates, pressure plates, and fiber. Multiple grooves are usually cut out of the substrate base, and the pressure plate is tightly and fixed into the fiber of fiber. The optical fiber array requirements for materials and manufacturing technology are very high.
The fiber array mainly depends on the precision carved V -shaped grooves to achieve positioning. The V -type slot needs to use a special cutting process to achieve accurate optical fiber positioning. The naked fiber part of the fiber coating is placed in the V -shaped groove. Inside, to reduce the connection loss, then press the compressor component and fix it with a bonding agent. The end surface passes through optical grinding to form a fiber array. The substrate material will affect the optical properties of the fiber array. It is necessary to use materials with less expansion factor to ensure that the fiber array is not stress, high reliability, and no fiber fiber at high temperature. Glass and silicon are commonly used materials, and there are also ceramic, conductive substrates and plastic substrates.
The distance between the grooves of the V -shaped groove, the number of fiber channels, and the grinding angle are customized according to demand, but the accuracy of the center to the center size between the adjacent grooves is ± 0.5 μm, adjacent The parallel of the groove length direction between the grooves is within ± 0.1 degrees. The optical fiber used by FA is mostly colorful band -like fiber, which has good bending performance, and colorful colors are convenient to distinguish channels.
Optical fiber arrays are usually used in graphic optical wave guides, array waveguide light grids, active/passive array optical fiber device, microcoperable system; multi -channel optical module, etc. Among them, optical fiber arrays are one of the important components of the Plc Splitter, which can greatly reduce the loss of light -waved conductive devices and optocouplers.
