Fabrication Method for the High-Accuracy Optical Fiber Delay Line with Specified Length

We propose a novel scheme for fabricating high-accuracy optical fiber delay lines (OFDLs). The fabrication system integrates self-designed cutting device and length measurement module based on frequency domain reflectometry. can cleave fibers to specific with the help of motorized stage. accuracy fiber-cutting was determined by positional stage, which reach several microns or even lower. This integrated design significantly reduces errors uncertainties introduced fiber-cutting. To test, set OFDLs certain fabricated this system. deviation from desired kept below 50 μm, thus proving high repeatability.