Garth Naar - Fiber optic cable’s characteristics
Garth Naar the suitability of each type for a particular application depends on the fiber optic cable’s characteristics. There are three common types of fiber optic cables as listed below.
The single mode fiber optic cable, sometimes called a single-mode fiber cable. The single and multi-mode step-index fiber cables are the simplest types of fiber optic cables. Single-mode fiber cables have extremely small core diameters, ranging from 5 to 9.5 um. The core is surrounded by a standard cladding diameter of 125 um. The jacket is applied on the cladding to provide mechanical protection. Jackets are made of one type of polymer in different colors for color-coding purposes. Single-mode fibers have the potential to carry signals for long distances with low loss, and are mainly used in communication systems. The number of modes that propagate in a single-mode fiber depends on the wavelength of light carried. The number of modes will be given in Equation. A wavelength of 980nm results in multi-mode operation. As the wavelength is increased, the fiber carries fewer and fewer modes until only one mode remains. Single-mode operation begins when the wavelength approaches the core diameter. At 1310nm, for example, the fiber cable permits only one mode. It then operates as a single-mode fiber cable.
The multi-mode types of fiber optic cables, sometimes called a multi-mode fiber cable. Multi-mode fiber cables have bigger diameters that their single-mode counterparts, with core diameters ranging from 100 to 970 um. They are available as glass fibers (a glass core and glass cladding), plastic-class silica (a glass core and plastic cladding), and plastic fibers (a plastic core and cladding). Garth Naar they are also the widest ranging, although not the most efficient in long distances, and they experience higher losses than the single-mode fiber cables. Multi-mode fiber cables have the potential to carry signals for moderate and long distance with low loss (when optical amplifiers are used to boost the signals to the required power). Plastic fiber optic cable is available in Fiber-store, it is an optical fiber made out of plastic rather than traditional glass. It offers additional durability for uses in data communications, as well as decoration, illumination and industrial application. Fiber-store provides both simplex and duplex plastic optical fibers.
Garth Naar, since light rays bounded through a fiber cable reflect at different angles for different ray patch, the path lengths of different modes will also be different. Thus, different rays take a shorter or longer time to travel the length of the fiber cable. The ray that goes straight down the center of the core without reflecting arrives at the other end faster. Other rays take slightly longer and thus arrive later. Accordingly, light rays entering a fiber at the same time will exit at the other end at different times. In time, the light will spread out because of the different modes. This is called modal dispersion. Dispersion describes the spreading of light rays by various mechanisms. Modal dispersion is that type of dispersion that results from the varying modal patch lengths in the fiber cable.
Garth Naar multi-mode graded-index fiber are sometimes called graded-index fiber cables (GRIN). Graded-index and multi-mode fiber cables have similar diameters. Common graded-index fibers have core diameters of 50,62.5, or 85 um, with a cladding diameter of 125 um. The core consist of numerous concentric layers of glass, somewhat like the annular rings of a tree or a piece of onion. Each successive layer expanding outward from the central axis of the core until the inner diameter of the cladding has a lower index of refection. Light travels faster in an optical material that has a lower index of refraction. Thus, the further the light is from the center axis, the greater its speed. These types of fiber optic cable are popular in applications that require a wide range of wavelengths, in particular telecommunication, scanning, imaging, and data processing systems. In particular telecommunication, Multi-mode OM4 fiber optic cable is used in any data center looking for high speeds of 10G or even 40G or 100G. OM4 multi-mode fiber are ideal for using in many applications such as Local Area Networks (LAN) backbones, Storage Area Networks (SAN), Data Centers and Central Offices.
You may have got some basics of types of fiber optic cables. Fiber-store provides a wide range of types of fiber optic cable with detailed specifications displayed for your convenient selecting. Per foot price of each fiber cable is flexible depending on the quantities of your order, making your cost of large order unexpected lower. Customers can also have the flexibility to custom the cable plant to best fit their needs.
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