There are basically two types of multi-mode fibers: graded-index fibers and step-index fibers.
In addition to conventional optical fibers, fibers with special properties are available for specific applications. These fibers include polymer optical fibers, sapphire fibers , and fiber bundles.
The hollow-core fiber consists of a fused silica capillary that is equipped with a reflecting silver halide coating on the inside.
Fiber optic cables for indoor applications are suited for assembly with all standard connector systems.
Outdoor cables are suited for applications under harsh environmental conditions. They are equipped with 2, 4, or even 6 optical fibers. All standard connector systems can be assembled.