Fiber optic network design refers to the specialized processes leading to a successful installation and operation of a fiber optic network. In order to specify the characteristics of optical fibres and systems operating with optical amplifiers and the. Source of digital signals transmitting electrical optical converter optical fiber cable possible repeaters for signal regeneration receiving optical electrical converter digital receiver. Eliminating confusion between the different terms, and providing an understanding of the cable construction will make handling the products less complicated. Optical fiber cable has been in commercial use for almost 30 years. Performance of cabled optical fiber the performance of cabled single mode optical fiber corning itut rec.
Multimode cable has a larger core diameter 50um or 62. 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. It was suggested in 1966 that optical fibres might be the best choice for using laser light for optical communications, as they are capable of guiding the light in a manner similar to the guiding of electrons in copper wires. Unlike telecommunication fiber optic cables, the smc design allows the cable strain to be transferred to the optical fiber, which in turn can be detected and monitored by the botda interrogators. Sep 06, 2014 fiber optic cables group 3 optical fiber construction fiber optic cables group 3 core. Optical fibers and cables ece 6323 optical fibers and cables optical fiber manufacturing types of optical fibers optical fiber cables types of cable the challenges of optical fibers and cables for telecom applications can be manufactured, meeting certain requirements on quality, performance, costeffectiveness. Fiber optic cables are composed of one or more transparent fibers enclosed in protective coverings and strength members. Optimization of manufacturing parameters of optical fiber cables. An optical fiber cable is a type of cable that has a number of optical fibers bundled together, which are normally covered in their individual protective plastic covers.
Technical specification for single mode optical fiber cable. Introduction fiber optic cable is available in many physical variations. Loosetube cable, used in the majority of outsideplant installations in north america, and tightbuffered cable, primarily used inside buildings. The inner core is made of glass or plastic, and the cable is lighter in weight and less bulky than copper wiring. May 07, 2015 roughly 20 to 25 years is the commonly accepted timeframe when fiber optic cable is laid in the ground. Utilising the nano technology option in the f lextube family, which incorporates 200m b endbrightxs g. It is the responsibility of the user to test each fiber optic assembly for insulation capacity.
When light travels down multimode fiber it is reflected at different angles as it propagates down the transmission path. An optical transmission system can be resumed as follows. Use the chart below to find the right fiber optic cable for your environment. We are also strong believers in social justice and feel that. Locate the fiber type, fiber count, and construction and whether you want a plenum or riser cable. Optical fibre, cables and systems iii preface the invention of the laser and its demonstration is dated 1960.
At modern optical, we believe families everywhere deserve fashionable, affordable eyewear. Optimization of manufacturing parameters of optical fiber. Single mode fiber smf multimode fiber mmf the difference is basically in the size of the core. This is the first in a series of five courses about fiber optic cable systems. Pdf optical fiber cable design for distributed pipeline. It is intended for those interested in the process andor studying for the foa cfosd fiber optic network design specialist certification, either as a contractor. Since then, a large number of submarine lightwave systems have been deployed worldwide. Founded in 1974 by my father, yale weissman, modern remains a true champion of the independent eye care professional. While designing an optical fiber cable for any of the applications like duct, underground buried, aerial and indoor, the cable design engineer needs to consider some of the mechanical parameters of optical fibers and cables. The design factors for some types of fiber optic cables are listed below. When we make a quick phone call, check a website, or download a video in todays highly connected world, its all made possible by beams of light constantly bouncing through hairthin strands of optical fiber.
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. But some people think that fibre lasts only a couple of decades. 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 deployed. The product and technical sections feature the latest information on fiber optic cable products, from applications and construction to detailed technical and specific data. Fiber optics is affordable today, as electronics prices fall and optical cable pricing remains low. Example of the construction of a multi fiber cable ii. Article optical fiber cables mike holt enterprises. The two most common protection schemes in use today are to enclose the tiny fiber in a. Underground installation of optic fiber cable placing. The cable should never be loaded beyond its maximum tensile strength. Introduction the purpose of this document is to define the standards and guidelines that should be followed in order to fabricate a harsh environment fiber optic cable assembly. Indoor cables fire safety is the number one factor in selecting indoor cables, particularly those that. Unfollow optical cable to stop getting updates on your ebay feed. 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.
The diameter of the cladding surrounding core is125. Traditionally, cable designs have been classified as either tight or loose buffer designs. With the rapid spread of 4g networks, china, india and other asiapacific countries demand for optical fibres in the field of telecommunications broadband is expected to. Glass fiber optics glass fiber optics banner glass fibers solve numerous challenging sensing. Pcf fiber optics to enhance our existing broad range of fiber optic cables and to allow you to select the best transmission medium for your application. These fibers are protected by an internal construction that is unique to fiber optic cable. The step index cable refers to cable in which there is a step change in the refractive index between the core and the cladding. Unlike telecommunication fiber optic cables, the smc design allows the cable strain to be transferred to the optical fiber, which in turn can be detected. Fiber cable complying with stc mat 1601 specification. The series covers fiber optics from basic light theory transmission to cables, connectors, testing, and signal transmission. Optical fiber is f2 core, en1 clad, except where noted. In general, there are two methods to link optical fibers together. Article 770 optical fiber cables and raceways nonconductive optical fiber cable.
A2 fibres, means that 72 fibres can be provided inside a 6mm cable and 864 fibres inside a 15. Not everyone will ever design a fiber optic network, but understanding the process will make installing, testing and documenting a network easier. Flexible steel interlock sheathing is 302 stainless, except where noted. The modular design of loosetube cables typically holds up to 12 fibers per buffer tube with a maximum per cable fiber count of more than 200 fibers. Optical fiber cables are designed with a maximum tensile strength. It is the highly refractive central region of an optical fiber through which light is transmitted. Set with cable boot and crimp sleeve for cable o 3,0 mm dust caps o 4,5 9,8 o 5,4 3,0 23,6 38,0 24,5 5,65 9,0 o 5,2 o 6,3 o 3,6 4 fiber optic connectors order table technical data order number smmm fiber type insertion return housing singlemodemultimode loss db loss db colour 18006080 smsinglemode 9125 m optical fiber uses light to carry voice and data messages. This selfstudy program is designed to introduce the designer or manager to the process of fiber optic network design and the implementation of that design in a real world project. Optical fiber cables types of cable the challenges of optical fibers and cables for telecom applications can be manufactured, meeting certain requirements on quality, performance, costeffectiveness. Everything you always wanted to know about optical. Keep these data available to those who will perform maintenance and troubleshooting. Fiber optic cables group 3 optical fiber construction fiber optic cables group 3 core.
Indoor singleunit 2 through 24 fibers hitachi cable. Combination of optical glass fiber, stainless steel or pvc, brass silicone rubber, teflon, molded thermoplastics, and optical grade epoxy. Fiber optic cables allow signals, such as light, to travel through without interference. Fiber optics fundamentals1011 applied network research group department of computer engineering, kasetsart university 1011 cable structures core cladding fiber color coded jacket strength elements outer jacket central strength elements fiber cables are normally bundled with several cores e.
Fiber optic cable is available in singlemode and multimode types fig 1. The glass used in the core is extremely pure silicon dioxide sio2, a material so clear that you could look through 5 miles of it as though you were looking through a household window. In general, people building networks are working on 40 years as a minimum, and some are expecting it to last 100 years. The optical fiber core is usually made of glass, although some are made of plastic. Optical cables are used to transfer digital data signals in the form of light up to distances of hundreds of miles with higher throughput rates than those. 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. A real fiber optic cable is made of glass which is incredibly pure to allow light to pass through over very long distances. Product description this is a black foot spool of indooroutdoor plenum rated fiber optic distribution cable intended for large installations of short range runs at lan speeds. Fiber optic cables assemblies, connectors and accessories. In many cases, fiber solutions are less costly than copper. The other type, as indicated by the name, changes more gradually over the diameter of the fibre. For more information on how the levels are determined click on the fiber optic cables applicable. Fiber optic cable an outer jacket of pvc polyvinyl chloride or similar material is then extruded over everything to protect the inside of the cable from the rigors of the operating environment. An optical fiber cable that contains metallic strength members, metallic vapor barriers, and metallic armor or sheath.
Using this type of cable, the light is refracted towards the centre of the cable. While most fiber optic cables are manufactured of totally nonconductive. Pure fiber optics pof polymer optical fiber and plasticcoated glass fiber. Fiber optics ii cable design a pdh online course for. Optical fibers are thin cylindrical dielectric nonconductive waveguides used to send light energy for communication. 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. Flexibility and durability whatever the infrastructure. Technical specification for single mode optical fiber. Regardless of the final outer construction however, all fiber optic cable contains one or more optical fibers. Industrial fiber optic cables anixter wire and cable. The gradedstep core and cladding of our black bulk 62. An optical fiber cable that contain no metallic members or electrically conductive materials. Then, choose the appropriate level for your environment and click the part number to view the product details.
Fiber optic cable products this catalog contains indepth information on the general cable line of fiber optic cable for voice, video and data transmission. Mark cable as fiber optic cable in all locations in which it can be easily reached. Such marking will alert electricians to the nature of the cable. The innovation emerged as one of cornings greatest success stories when scientists, in 1970, developed a way to transmit light through fiber without losing much of. Optical fiber cable structure can be categorized as follows. The choice of optical fiber materials and fiber design depends on operating conditions and intended. The cores, which carry the light, are the smallest components of optical fiber.
As bandwidth demands increase rapidly with technological advances, fiber will continue to play a vital role in the longterm success of telecommunication. Optical fiber cables coaxial cable optical fiber free. This course content is in the following pdf document. Construction 1 all dielectric cable in which the strength members and or sheathing are dielectric construction 2 cable in which metallic materials are used for strength members or sheathing or both. Specifications of optical fiber cable gcyfty nanjing fiberhome fujikura optical communication ltd. Basic cable components, such as buffers, strength members, and jacket materials are explained as well as the advantages and disadvantages of ofcc cable, stranded cable, and ribbon cable designs. Fiber optic cable manufacturers who say cables are designed for approximately a 40 year lifetime. Do not subject the fibers to sharp bends, pinching, repeated flexing, or high. In multi fiber cables, an additional strength member is also often added. The technologies addressed include fiber and coating design, cable structures, installation, splicing.
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