Fibre optic technology relies on the fact that it is possible to send a light beam along a thin fibre suitably constructed. The advantages and disadvantages of optical fiber fs. Specification standard optical fiber backbone cabling 27 23 the university of new mexico, november 17, 2010 page 4 of 16 optical fibers, unless otherwise specifiedand. Components of fiber optic cable and how a fiber optic.
It has evolved with the growing demand for more speed. The single and multimode stepindex fiber cables are the simpplest types of fiber optic cables. In all the cases the fiberbuf fer tube is first en closed in a layer of synthetic yarn such as kevlar for strength. Technical specification for single mode optical fiber. The cable design relates to the intended application of the cable. The general structure of optical fibers is the same for any cable. Many factors influence the design of fiber optic cables.
The enormous progress realized over the 30year period extending from 1975 can be grouped in several distinct phases. An optical fiber or fiber optic cable is a flexible, transparent fiber made by drawing glass, which are used most often as a means to transmit light between the two ends of the. Affordable and search from millions of royalty free images, photos and vectors. Singlemode fiber cables have extremely small core diameters, ranging from 5 to 9.
Components of fiber optic cable and how a fiber optic system works the world of fiber optic technology seems to be new. Introduction to fiber optic splicing fiber optic cables. Fiber optic cable spanning a broad range of endtoend fibre solutions for communication networks, corning optical communications forms the backbone that connects businesses, homes, and people around the globe. Variations might affect core diameter, materials used, and environment cable could be used in. Jun 04, 20 the three typical types of fiber optic cables, including multimode fiber optic cable, single mode cable and plastic optical fiber cable pof, are all adaptable to the basic structure and working principle. Cfo 301 standard for installing and testing fiber optics management, security or fire alarm systems, or any other communications link. The single and multimode stepindex fiber cables are the simpplest. Pdf optimization of manufacturing parameters of optical. An optical fiber is a thin, flexible, transparent fiber that acts as a waveguide, or light pipe, to transmit light between the two ends of the fiber. Core a fiber optics center is made of glass, and this tube carries the cables light signals. Technical specification for single mode optical fiber cable. Until then, signals had been sent and received using copper strands or satellite systems, which have now largely been replaced by optic fiber technology. More characteristics of fiber optic cable fiber optic.
In order to better understand how fiber cable works, one should have a look at its components see figure 1. Common fiber optic cable types generally, there are three types of fiber optic cables. Theyre designed for longdistance, highperformance data networking, and telecommunications. Fiber optic cable is able to function as a data transfer medium through the transmission of light because the hollow, round glass or sometimes plastic wires reflect the light back to the core of the wire, causing the cable to act as a waveguide. Fiber optic cable is similar to electrical cable in its construction, but. To be specific, fiber optic splicing is a process to combine the ends of optic fibers together. How to identify fiber optic cable posted on april 5, 20 by admin accompanied by the continuous advancement of network technology, fiber optic cable products constantly in. Most important specification of the core is the index of refraction which is the value for light bending passing through the material and for the speed of that light could travel through material with. Basic structure of an optical fiber the basic structure of an optical fiber consists of three parts. May 28, 2016 during the actual operation of fiber cables, fiber optic splicing is often needed to achieve the connection between optic fibers.
The optical cable structure protects optical fibers from environmental damage. If the words optical fiber are a bit strange for you, just think of them as wires that can transmit light. The core of multimode fiber optic cable is most commonly 62. Datasheet the construction of fiber optic cable fiber optic elements fiber optic cable provides the most advanced. To be specific, fiber optic splicing is a process to. Optical fibers are widely used in fiber optic communications, which permits transmission over longer distances and at higher bandwidths data rates than other forms of communication. The enormous progress realized over the 30year period extending from 1975 can be grouped in. There are three types of fiber optic cable commonly used. A 38 inch 12 pair fiber cable can carry as many voice. The cable structure also must restrain the minimum bend radius of the fiber since micro bending which occurs below a minimum bend radius will also induce added fiber attenuation. The complexity of a fiber optic system can range from. Fiber optic cable products this catalog contains indepth information on the general cable line of fiber optic cable for voice, video and data transmission. Keep these data available to those who will perform maintenance and troubleshooting.
A fiber, multiple fiber or fiber bundle in a cable structure fabricated to meet optical mechanical and environmental specifications. The core is a cylindrical rod of dielectric material. For systems requiring transmission over distances of many kilometers, or where. An increasing amount of fiber will be installed in the future as we find more and more uses for this technology. In this paper i will be telling you what a fiber optic cable is made of, how a. Single mode fiber optic cable the mode in fiber optic cable refers to the path in which light travels. The advantages and disadvantages of optical fiber fs community. Compared to wired cables, fiber optic cables provide higher bandwidth and transmit data over longer distances. Datasheet the construction of fiber optic cable fiber optic elements fiber optic cable provides the most advanced communication media available today. Optical fiber working principle explained fiber optic solutions. The step index cable refers to cable in which there is a step change in the refractive index between the core and the cladding. The role of fiber optic cables in computer networking.
The basic structure of an optical fiber consists of three parts. Cable structure includes buffers, strength members, and jackets. Depending on the type of fiber optic cable single mode or multi mode, the core varies in size. During the actual operation of fiber cables, fiber optic splicing is often needed to achieve the connection between optic fibers. A 38 inch 12 pair fiber cable can carry as many voice channels as a 3 inch diameter copper 900 twisted pair cable. This central section, made of silica or doped silica, is the light transmitting region of the fiber. Specification standard optical fiber backbone cabling 27 23 the university of new mexico, november 17, 2010 page 4 of 16 optical fibers, unless otherwise specifiedand approved by unm it.
A fiber optic cable, also known as an optical fiber cable, is an assembly similar to an electrical cable, but containing one or more optical fibers that are used to carry light. Aug 21, 2014 duplex fiber optic cable, in contrast, have two tightbuffered optical fibers inside a single jacket. This article introduces you the optical fiber working principle extensively. The basic structure of an optical fiber is shown in figure 29. Jan 17, 2020 a fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. Variations might affect core diameter, materials used, and. And only one end of each individual fiber is required. The single mode fiber optic cable, sometimes called a singlemode fiber cable, is shown in figure 1. How to identify fiber optic cable fiber optic components.
Fiber optic cables are typically used for long distance communication applications where they can be used to their full transmission capacity and offset the cost of installation and maintenance. While there are many components used in building up a fibre optic link fiber optic link, the fibre optic cabling is obviously the key element. A fiber optic component normally assembled onto a cable and attached. These cables are most often utilized where a oneway transmission or receiving line is required to operate, meaning information is running in only one direction for all device use. The real research phase of fibreoptic communication systems started around 1975.
Introduction to fiber optic cables allied electronics. The core is surrounded by a standard cladding diameter. Lets take a look at this general build of an optical fiber. The fiber optic cable the cable consists of one or more glass fibers, which act as waveguides for the optical signal light. Chapter 12, fiber optic cable assembly installation. Since om1 and om2 fiber could not support the higher speeds, om3 and om4 became the main choice for. The most popular use for duplex fiber optic cables is as a fiber optic cable is as a fiber optic a lan backbone cable, because all lan connections need a transmission fiber and a reception fiber. Aug 21, 2014 the single mode fiber optic cable, sometimes called a singlemode fiber cable, is shown in figure 1. A standard fiber optic cable is comprised of four specific parts. Optical fiber cable structure can be categorized as follows. Mark cable as fiber optic cable in all locations in which it can be easily reached.
The same way as copper cables, fiber cables vary in specifications, mainly depending on the applications they are designed for. Fiber optic cable connectors and the equipment needed to install them are still more expensive than their copper counterparts. The organization structure guarantees the important local. Othe sizes of multimode fiber optic cable include 50125 and 100140 microns. This fiber cable weighs 176 pounds per kilometer, the 3 inch copper over 16,000 lbskm. Construction 1 all dielectric cable in which the strength members and or sheathing are dielectric. Optical fiber cable is best suited for systems requiring a higher bandwidth since there is an exceptionally low loss. Workmanship standard for fiber optic terminations, cable. Using this principle, fiber optic network cable was first commercially developed in the 1970s, revolutionizing the telecommunications industry. Another benefit of fiber cable is its very low signal loss, which allows for great distances between terminations or inline signal repeaters. Jul 12, 2017 an optical fiber or fiber optic cable is a flexible, transparent fiber made by drawing glass, which are used most often as a means to transmit light between the two ends of the fiber and find wide. Fiber optic connectors todays and future communication technology. Feb 12, 2014 the construction of fiber optic cable pdf 1. Transparent glass or plastic fibers which allow light to be guided from one end to the other with minimal loss.
Fiber optic cable is able to function as a data transfer medium through the transmission of light because the hollow, round glass or sometimes plastic wires reflect the light back to the core. Round fiber optic cables house two fiber lines within one exterior cable, so are functionally duplex cables but from the outside look like a single cable. Dec 04, 2014 hence, singlemode fiber optic cable is labeled 8. An all inclusive list of the various optical fiber specification sheets.
While not totally immune, optic fibers are highly resistant to electromagnetic pulse. The product and technical sections feature the latest information on fiber optic cable products, from applications and construction to detailed technical and specific data. Simplex a cable in which a single fiber optic strand core and cladding exists. Duplex fiber optic cable, in contrast, have two tightbuffered optical fibers inside a single jacket.
In general, there are two methods to link optical fibers together. A fiberoptic cable, also known as an opticalfiber cable, is an assembly similar to an electrical cable, but containing one or more optical fibers that are used to carry light. Fiber optic cable is similar to electrical cable in its construction, but provides special protection for the optical fiber within. Intro before you pull, terminate or splice fiber optic cable, you need to understand its construction to attach pulling eyes or prepare fibers for splicing or termination. The most popular use for duplex fiber optic cables is as a fiberoptic cable is as a. While copper cabling typically can run only about a mile. Spanning a broad range of endtoend fibre solutions for communication networks, corning optical communications forms the backbone that connects businesses. Composition of a fiber optic cable fiber optic solutions. In premises applications, fiber optic cables can be used as the backbone cabling in a standard structured cabling network, connecting network hardware in the computer roommain cross connect. Apr 05, 20 how to identify fiber optic cable posted on april 5, 20 by admin accompanied by the continuous advancement of network technology, fiber optic cable products constantly in the construction of telecommunications networks, the construction of the national information highway, ftth fiber to the desktop and other occasions for largescale use. Over this time period the bl product b is the bit rate and l is the repeater spacing, where the repeaters perform.
An optical fiber is made of 3 concentric layers see figure 3. Use of the term supplier applies to any entity who is manufacturing hardware in. When stripping optical fiber cable of its layers, following. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be. A fiber optic cable may refer to any of the following 1. Fiber optic cables are available at mouser electronics. Without protection, optical fibers are fragile and can be broken. Such marking will alert electricians to the nature of the cable.
What are the advantages and disadvantages of optical fiber. Traditionally, cable designs have been classified as either tight or loose buffer designs. A geospatially enabled fiber management system the solution to these problems is an information system that integrates both the design and asset management processes required for the fiber network. Single mode cable is a single stand most applications use 2. Theyre designed for longdistance, highperformance data networking, and. The primary function of the optical fiber is to protect the fibers from damage during installation and use. General structure of optical fibers physical aspects 1. Scduplex connector set for 3,0 mm cable singlemode multimode housing material. A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. Example of the construction of a multi fiber cable ii. Belden optical fiber cables 3 table of contents 45 construction lookup table 67 part number coding 7 fiber types 89 interconnect cables page indoor buffered fiber 1011 indoor simplex cable 12 indoor duplex cable 1415 indoor duplex cable round 1617 indoor heavy duplex cable 1819. The real research phase of fibre optic communication systems started around 1975.
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