Fibre Optic Cables
Fiber optic cable / fiber optic cable: For an increasing number of transmission applications, conventional media such as twisted-pair cables or coaxial lines no longer meet the requirements for bandwidth, range or immunity to interference. This is where the optical fibre cables (LWL) have become established. They are often referred to as fiber optic cables, in which several optical fibers are typically bundled.
Optic fibres are classified by different criteria:
- Fibre construction: There are step index and graded index fibres.
- Wave extension: Multi-mode and single-mode fibres are distinguished.
- Raw materials: Quartz glass or plastics (PMMA).
Before the optical fibres can be processed to practical cable constructions they need to be coated with a secondary protection layer. There are three different types of cores: loose buffer tubes, tight buffer (semi tight buffer) and multifibre loose buffer tubes. Multifibre buffer tubes are filled with water repellant gel.