A Buffer is a protective material used to safeguard optical fiber or cable from physical damage. Buffers come in different types of fabrication techniques, such as a tight jacket or loose tube buffering and multiple buffer layers, to provide mechanical isolation or protection.
A tight jacket buffer is a type of buffer that is tightly wrapped around the fiber or cable to provide a high degree of protection. This type of buffer is most commonly used in outdoor applications and is often made of a strong, durable material such as polyurethane, PVC, or a combination of materials. Tight jackets provide excellent resistance to water, dust, and other environmental factors.
Loose tube buffering is another type of buffer used to protect optical fiber and cable. This type of buffer is less rigid than the tight jacket and is typically used for indoor applications. It consists of a loose-fitting tube, usually made of a flexible material such as polyethylene. This type of buffer provides a greater degree of flexibility and is more easily installed than the tight jacket buffer.
Multiple buffer layers are used to provide extra protection for optical fiber and cable. This type of buffer consists of several layers of different materials, such as PVC, polyethylene, and Kevlar. This type of buffer is used in applications where additional protection is needed, such as in high-traffic areas or areas that are exposed to extreme temperatures.
In conclusion, a buffer is an essential material used to protect optical fiber or cable from physical damage.