Fiber Optic Cables for the Telecommunications Sector

Optical cables designed for next-generation telecom networks

Fiber Optic Cables: Structure, Function, and Application in Telecommunications

Fiber optic cables are high-performance data transmission systems, designed to carry light pulses over long distances with minimal attenuation and wide bandwidth. The technology bases transmission on internal reflection within highly pure filaments, ensuring signal stability even in extensive infrastructure. To ensure cable robustness, the optical fiber is protected by multiple layers of coating and an outer sheath made of thermoplastic materials, which preserve its mechanical and environmental properties. The cables are used in the telecommunications, networking, data center, and industrial systems sectors, with specific requirements for transmission speed, insulation, and operational lifespan.

Materials for Optical Sheaths and Regulatory Requirements for Coatings

The production of optical cable sheathing requires materials that meet physical, chemical, and environmental resistance criteria. The most common thermoplastic materials for the outer sheath include polyethylene (PE) for resistance to moisture and UV rays, polyvinyl chloride (PVC) for flexibility and ease of installation in indoor environments, and polyurethane (PU) for abrasion resistance and flexibility in mobile or dynamic applications. Some projects require LSZH (Low Smoke Zero Halogen) material when fire safety is a design constraint. The choice of material is determined according to applicable technical regulations and the installation environment, to ensure consistent performance and operational safety on high-capacity networks.

Technical Process Requirements and Quality Control for Optical Cables

The production of fiber optic cables requires a controlled extrusion process to ensure precise sheath centering, thickness uniformity, and optimal adhesion to the optical core. The sheath must protect the fiber from mechanical stress, twisting, and thermal variations, while maintaining geometric integrity along the entire length of the cable. To meet international standards and customer specifications, the line must integrate calibration, cooling, haul-off, and winding systems with high levels of modularity and process control. The ability to monitor and adjust parameters such as temperature, extrusion speed, and cable

Bausano Extrusion Lines for Fiber Optic Sheathing

Bausano designs complete extrusion systems for the production of fiber optic cable sheathing, configurable for materials such as PE, PVC, and PU, according to application and regulatory requirements. The lines include extruders with advanced thermal control, single- or multilayer extrusion heads, high-performance calibration tanks, and synchronized haul-off and winding systems. Bausano's patented technologies, such as the Multidrive system for torque distribution and induction heating, help reduce energy consumption and improve process stability. Thanks to a modular design, these lines ensure production repeatability, adaptability to special batches, and compliance with industry standards, making it possible to produce optical cables with precise technical and performance characteristics.

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To identify the most suitable extrusion solution for the production of sheathing and cables for fiber optic applications, a personalized consultation can be requested with Bausano's technicians specialized in the design and construction of extrusion lines.

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By filling in the form below, it is possible to describe specific technical or production requirements. The technical team will carefully evaluate the request in order to propose the most suitable extrusion line or extruder.