OPTICAL AMPLIFIER An optical amplifier is a device that amplifies an optical signal directly‚ without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity‚ or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. There are several different physical mechanisms that can be used to amplify a light signal‚ which correspond to the major types of optical
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Executive Summary Optical fibres are being increasingly used in the telecommunications industry. They are slowly replacing the conventional copper cables due their superior ‘data transmission’ properties. They transmit data via light pulses within glass or plastic strands. Fibre optics fit the material requirements for good data transmission since they are ability to transmit and preserve quality of signals‚ durable and cost-effective. Some of the current materials employed within the industry
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Optical Fiber and its Applications Index 1. Aim 2. Important Terms 3. Optical Fibers 4. Applications 5. Principle Of Operation 6. Mechanism of Attenuation 7. Manufacturing 8. Practical Issue 9. Electronically Based Project 10. Bibliography Aim To Study the Optical Fibre Cable Principle and its Applications. Important Terms v Optical Fiber: An optical fiber (or fibre) is a glass or plastic fiber that carries light along its length. Fiber optics is the
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Fibre Optics Technology over the past century has advanced greatly. Fibre optics however is being utilized since more than a hundred years. Optical fibre is a model that has evolved greatly over time. From guided transmission lights experiments to lasers and light emitting diodes (LED)‚ and to dense wavelength-division multiplexing (DWDM)‚ the area under which optical fibre can be used has expanded. One of the modern and commonly used applications
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Edison’s ’phonograph. Since the development of optical fibres ’photo phones’ and ’phonographs’ are no longer used or needed. Optical fibres have many advantages; they enable the sound messages to carry for 50km without any need for a repeater unlike other optical communication systems‚ which need repeaters at 1km intervals. Optical fibres have replaced other methods of communication for many reasons‚ some listed below. *Capacity Optical fibres can carry signals with much less energy than copper
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into new fibre resources. It is very amazing that natural fibre such as kenaf‚ flax‚ jute‚hemp and sisal are in need compared with synthetic fibre which has very huge development in industry. Natural fibre in the nick of time‚ has become new resources of alternatives due to their inherent properties such as ease of fabrication‚ structural control‚ productivity‚ easy availability‚ less physical work‚ and cost reduction(Biagiotti‚ Puglia et al. 2004) 1.2 Problem Statement Lemba Fibre is new
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Creating optical illusions is an art in itself. And portraying an optical illusion into an aesthetically pleasing work of art requires a fair bit of sense and sensibility. Expressing your artistic skills through illusions calls for the stroke of genius. Literally. In today’s post featured artists have shown their mastery of artistic shapes and colors to produce enlightening as well as scary optical illusions. The post also includes some awesome 3D optical illusions and Jesus optical illusion pictures
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OPTICAL FIBER COMMUNICATION Zafar Yasin OUTLINE - Introduction about Optical Fibers. Main Characteristics of Fiber Optics Communication System. Light propagation in an Optical Fiber. Mode Analysis for Single Mode Fiber. Mode Analysis for Multimode Fibers. Surface Plasmon Resonance. Optical Fiber Surface Plasmon Resonance Sensors. Fibre Optic? Dielectric waveguide of cylindrical geometry with core and cladding of suitable material. refractive index of core > refractive index of
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OPTICAL AMPLIFIERS IN OPTICAL COMMUNICATION SYSTEM Arminder kaur1‚ Upneet Kaur2‚ Gaurav soni3 1‚2M.Tech Scholar (ECE)‚ Amritsar College of Engg. &Technology‚ Amritsar‚ Punjab‚ India. 3Associate Professor‚ Deptt. of ECE‚ Amritsar College of Engg. & Technology‚ Amritsar‚ Punjab‚ India. ABSTRACT: This paper reviews several technologies of optical amplifiers with their applications and we focus on the recent progress in some important aspects of several optical fiber amplifier technology
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Optical Computing Jainam Shah Kalol Institute Of Technology‚ Kalol‚ Gujarat‚ India. jainam_8888@yahoo.co.in Abstract—Optics has been used in computing for a number of years but the main emphasis has been and continues to be to link portions of computers‚ for communications‚ or more intrinsically in devices that have some optical application or component (optical pattern recognition‚ etc). Optical digital computers are still some years away‚ however a number of devices that can ultimately lead to
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