An optical fiber is a flexible, transparent fiber made by drawing glass or plastic to a diameter slightly thicker than that of a human hair. The high signal bandwidth of optical fibers provides. Powerpoint types of optical fiber linkedin slideshare. Performance of cabled optical fiber the performance of cabled single mode optical fiber corning itut rec. Add 50125 micron fiber om2, om3, om4 as an alternative fiber type and specifies performance. Almost all fibers currently used in optical communication systems are made of fused. In order to specify the characteristics of optical fibres and systems operating with optical amplifiers and the wdm technique, many new recommendations were developed in itut. Hence, based on the differences in the structure of the core, there are three main types of optical fibers. Main characteristics of fiber optics communication system. Optical fibers are used most often as a means to transmit light. Agrawal institute of optics university of rochester. The modes form a basis in the mathematical sense, i. Optical fiber is the technology associated with data transmission using light pulses traveling along with a long fiber which is usually made of plastic or glass.
The center of the fiber, or the core, plays a big role in the quality and distance the signal can travel through the. Types of optical fibers physical structure of optical. Attenuation the opticalloss of fiber per unit coefficient. They work on the principle of total internal reflection. As mentioned in the article on the structure of optical fibers, the properties of data transmission via a fiber optic depend on the core. Types of optical fiber understanding the characteristics of different fiber types aides in understanding the applications for which they are used. Optical fibers 3 lab periods objective stripping and cleaving of optical fibers for integration into optical devices. Optical fibers are also unaffected by electromagnetic interference. Microstructured optical fibers are a new type of optical fibers that are different from the above. The usual bandwidth specification of a multimode fiber is in the form of a 3db. Without it we would not enjoy the benefits of highspeed internet, or lowrate international telephone. Requirements, addendum 3, supportable distances and channel attenuation for optical fiber applications by fiber type. This chapter will discuss important fiber properties, describe fiber fabrication. A fiber optic cables and system can handle audio, video and data signals individually or.
An optical fiber is a cylindrical dielectric waveguide made of lowloss materials such as silica glass. Basics of fiber optics mark curranbrian shirk fiber optics, which is the science of light transmission through very fine glass or plastic fibers, continues to be used in more and more applications due to its inherent advantages over copper conductors. Pdf optical fiber communicationan introduction researchgate. Based on the refractive index profile of the core and cladding, the optical fibers are classified into two types. An optical fiber is generally a very thin flexible strand drawn from glass or transparent plastic. Large and complex databases all interconnected must be able to receive and transmit data without outside interferences.
Generally a mode in an optical fiber is represented as lp mn, where lp stands for linearly. Fiber optics is now the backbone of the internet and longdistance telecommunication. Other adapters available according to customers request. Conec manufactures an extensive fiber optic connector product line. Fiber optic cable types indoor fiber optic cables indoor fiber optic cables are designed to either limit smoke vertically riser, or limit smoke and flame vertically and horizontally plenum. The purpose of this article is to provide the nontechnical reader with an overview of. Fiber optic connectors todays and future communication technology demands fast, efficient and safe performance in the data communication process. Metal wires are preferred for transmission in optical fiber communication as signals travel with fewer damages. We are interested in solutions that take the form of waves traveling in the z. Multiple choice questions and answers on optical fiber. But this simplicity belies a number of major issues limiting its applications. It has a central core in which the light is guided, embedded in an outer.
Optical fibers are thread like structure made of glass and plastic in which light travel by total internal reflection. The optical properties of the fiber material which is usually fused silica, including. 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. Pdf introduction to fiber optics theory researchgate. Technical specification for single mode optical fiber. Place fiber optic distribution frame used for final termination or distribution of optical fibers. The allowed distribution of electromagnetic fields across the fiber is referred to as the modes of the fiber. The advantages of optical fiber communication with respect to copper wire systems are.