A fiber optic is made of three main parts, labeled in the figure to the right. Introduction to optical communication yatindra nath singh eeaces iit kanpur. Want to see whats the latest in technology, components and applications. Fiber optical communication lecture 1, slide 12 transatlantic cables fibers are used for high speed, long haul communication, but also for. The core, made of glass or plastic, provides the path for light propagation. Optical fibers typically include a transparent core surrounded by a transparent cladding material with a lower index. Optical fiber optical fiber or fiber optic refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic strand or fiber.
Message input laser detector message output electrical input electrical. Fundamentals of fiber optic systems optical fibers guide light waves within the fiber material because light rays bend or change direction when they pass from one medium to another. Use a fiber optic power meter to make sure that fiber is dark. Optical fiber ppt free download as powerpoint presentation. Low attenuation, the signal can be transmitted over long distances without.
It follows a helical trajectory confined within a cylindrical shell of radii r and a. Introduction to fibre optics jodrell bank observatory. Do not touch your eyes while working with fiber optic systems until they. A wide range of application areas have been identified and the technology has now matured to.
Page 4 transmission of signal in step index fiber the transmitted optical signal will cross the fiber axis during every. Light losses in fibres fibre is a transparent cylinder made of a dielectric. The projection of the ray on the transverse plane is a regular polygon that is not. A free powerpoint ppt presentation displayed as a flash slide show on id. 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. Consider two dielectric media with different refractive indices and with n 1 n 2 and that are in perfect contact, as shown in figure 5. Optical fiber powerpoint template is a free background for powerpoint presentations with an optical fiber image that you can download to decorate your presentations. In step index the density of the core remains constant from center of edges and the refractive index changes in a step fashion from center of fiber core to outer shell cladding. Ideal fiber optic basic training guide interested in learning about fiber optics.
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. A typical pointtopoint fiber optic communication network consists of a transmitter laser, a transport medium optical fiber and a receiver photodiode as in figure 1. This page contains optical fiber communication seminar and ppt with pdf report optical fiber communication seminar ppt with pdf report. Guide an educational resource published by communications specialties, inc introduction to fiber optics the equipment, tools and cabling that comprise a fiber optic link, how they work and their advantages over traditional copper. Introduction to fiber optics what are optical fibers thin strands of pure glass carry data over long distances at very high speeds fiber can be bent or twisted fiber optic technology sources transmission medium detectors sources of light light emitting diodes lasers sources modulate electrical signals into optical signals mostly modulate at. The purpose of this article is to provide the nontechnical reader with an overview of. It represents the knowledge gained from over 25 years experience in fiber. Optical fiber wave guiding to understand transmission mechanisms of optical fibers with dimensions approximating to those of a human hair.
Various methods to optically transmit analog information intensity digital onoff modulation of an led or ld can take a number of forms. Guiding of light by refraction, the principle that makes fibre optics possible, was first demonstrated in the early. Everything you always wanted to know about optical networking but were afraid to ask 1 richard a steenbergen nanog 57 february 20. Physics at a glance, animations, exam specifications, data, diagrams, photographic images and more. This fiber optic basic training guide has been designed to get you started and keep you up to date. The field of fibre optics communications has exploded over the past two decades. Immense binary flow rates, of the order of several tbs, under laboratory conditions reaching the order of 10 tbs, impossible while using copper based media. Optical fiber is a very thin strand of pure glass, which acts as a waveguide for light over long distances. Optical fiber carries much more information than conventional copper wire and is in general not subject to.
Schoolphysics is an online resource base for all 11 to 19 year old physics and science students and their teachers. Optical sources for fiber optic communication randhir. This document is highly rated by students and has been viewed 455 times. Necessary to consider the optical waveguiding of a cylindrical glass fiber. Upgrade your fiber optic diagnostics with portable ultrahigh resolution optical backscatter reflectometry. The simplest, as we have already seen, is lighton for a logic 1, and lightoff for a logic 0. Introduction to fiber optics is well established as an introductory text for engineers, managers and students.
Intercity connects and city networks providing high speed connections to terminals providing wireless services high speed 100 mbits and above services fttx, where x home etc. You hear about fiberoptic cables whenever people talk about the telephone system, the cable tv system or the internet. Review questions are included in the text to enable the reader to check their. An optical fiber is a flexible, transparent fiber made of high quality glass silica or plastic, slightly thicker than a human hair. Fibre is an integral part of modern day communication infrastucture and can be found along roads, in buildings, hospitals and machinary. Fiber optics this lecture numerical aperture of optical fiber allowed modes in fibers attenuation distortion modal distortion material dispersion waveguide dispersion last lecture fourier analysis temporal coherence and line width partial coherence. If you are interested in communications wiring as well as fiber optics, you may be interested in data, voice and video cabling, also by jim hayes. On the job, mike routinely works with fusion splicers, optical power meters, and laser sources and detectors, as well as with optical spectrum.
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. It meets the needs of systems designers, installation engineers, electronic engineers and anyone else looking to gain a working knowledge of fiber optics with a minimum of maths. Scribd is the worlds largest social reading and publishing site. Notes on optical fibres and fibre bundles introduction this note has been prepared with the intention of putting of summarising salient facts about. Ppt fiber optics technology powerpoint presentation. The basic law of light guidance is snells law figure 5. The journal gives the options of multiple language translations for all the articles and all archived articles are available in html, xml, pdf and audio formats. The background he received, especially in the area of fiber optic testing and measuring, has proven to be invaluable in his daytoday activities. 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. If so, share your ppt presentation slides online with. When using an optical tracer or continuity checker, look at the fiber from an angle at least 6 inches away from your eye to determine if the visible light is present.
Positioning equipment for automated fiber optics device manufacturing. A fiber made of a core and cladding with two reflective indices near and clad is called step index. Most common material used in fibres is fused silica amorphous sio. When an electron jumps from a higher energy state e c to a lower energy state ev the difference in energy e c e v is released either as a photon of energy e h radiative recombination as heat nonradiative recombination emission of light, in the form of a photon can take place either spontaneously or it can be stimulated by the. It meets the needs of systems designers, installation engineers, electronic engineers and anyone else looking to gain a working knowledge of.
The fiber optic transmission interface presented here uses new complementary bipolar integrated circuits from burrbrown. Everything you always wanted to know about optical. It either functions as a waveguide or light pipe that transmits light between two ends of the fiber or fiber cable. Optical fibre, cables and systems i foreword malcolm johnson director itu telecommunication standardization sector as we approach the half century mark for the dawn of the era of optical communications, it is appropriate to take stock of the journey of. This nice powerpoint template with fiber optics will suit presentations on opticfiber networking, fiberoptics communication, fiber optics, internet, etc. The technology of fibre optics, is a relatively simple and old technology. Optical fiber communication seminar ppt with pdf report. Optical fiber technology was considered to be a major driver behind the information. These programs include complete annotated powerpoint presentations, ppt printouts with student notes, instructor and student manuals, and many other features. The problem is the air of mysticism surrounding the industry. Apr 20, 2020 lecture notes fiber optics notes edurev is made by best teachers of. Neutrik 2015 page 7 neutrik fiber optic technology for avit since fiber is nonconductive, it is completely immune to emi, rfi, noise, ground loops, lightning.
An optical fiber is a long thin strand of impurityfree glass used as a transport medium for data. Optical fiber communication seminar and ppt with pdf report. There has been intense research in the area of fiberoptic sensors over the last decade. An optical fiber is a thin, flexible, crystal clear fiber that acts as a waveguide, or light pipe, to convey light between the two ends of the fiber. 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. In many places, thinner optical fibers have replaced thicker copper cables to carry telephoneinternet communication more efficient the 2009 nobel prize in physics was awarded for the development of fiber optic cable. Download as ppt, pdf, txt or read online from scribd. Fiber optics technology is the property of its rightful owner. Ph 0101 unit3 lect 6 fiber optics basic principles physical structure of optical fibre propagation characteristics of optical fibre unit iii lecture 6 fiber optics.