Process Advantages

High-quality coating layer, no deformation at 300℃, adjustable coating thickness;

Our company uses a specially designed vertical online thermosetting process, which allows for a large adjustable range of coating thickness, good concentricity of the fiber coating layer, and a smooth coating surface that avoids stress concentration points, significantly improving the selection strength. At the same time, the curing is uniform, reducing glue residue. In our 300℃ high-temperature thermal shock test, the fiber does not bend or deform, maintaining excellent bending and tensile strength after prolonged high-temperature exposure;

High-speed preparation of low-loss optical fibers;

Polyimide, unlike acrylate light-curing methods, requires a thermosetting process that has a longer curing time, resulting in a slower fiber drawing speed compared to conventional acrylate drawing, which can increase fiber loss during the longer drawing process;

Based on the online continuous thermoplastic/thermosetting process with a longer fiber run and specially modulated PI coatings, our process can achieve excellent coating quality at higher drawing speeds, significantly improving the preparation efficiency of high-temperature resistant fibers and increasing the consistency of the fiber's geometric parameters. By applying multi-stage, multi-parameter PI materials, we achieve thicker PI coatings and lower single-mode fiber losses by adjusting the physical and chemical properties of the inner, middle, and outer layers of materials.

Industry Applications and Operating Environments

Medical industry; mining industry, oil and gas industry; aerospace industry, nuclear industry; chemical industry; optical communication industry; power industry; high temperature, high pressure, and low temperature environments; electromagnetic radiation environment; underwater use, resistant to hydrolysis; medical interventional therapy, with biocompatibility; can be ETO and radiation sterilized (pure silica core).

Parameter

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