Sean Braun Assignment 9 There are two main types of fibre optic transmitter that are in use today. Both of them are based around semiconductor technology: • Light emitting diodes (LEDs) • Laser diodes Semiconductor optical transmitters have many advantages. They are small‚ convenient‚ and reliable. However‚ the two different types of fibre optic transmitter have very different properties and they tend to be used in widely different applications. LED transmitters These fibre optic transmitters
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A SEMINAR REPORT on LIDAR Submitted for partial fulfillment of award of B.Tech. Degree in Electronics & Communication Engineering SUBMITTED BY VINIT KUMAR MADDHESHIYA SUBMITTED TO MR. ANSHUMAN SINGH ASST. PROFESSOR‚ Dept. of EC NOIDA INSTITUTE OF ENGINEERING & TECHNOLOGY‚ GREATER NOIDA MARCH‚ 2010-2011 Certificate This is to certify that the Seminar report entitled “LIDAR” is a record of the bonafide work done by VINIT KUMAR MADDHESHIYA‚ Roll No.0813331102
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effective the communication is ! Presently in the twenty-first centaury wireless networking is gaining because of speed and ease of deployment and relatively high network robustness. Modern era of optical communication originated with the invention of LASER in 1958 and fabrication of low-loss optical fiber in 1970. When we hear of optical communications we all think of optical fibers‚ what I have for u today is AN OPTICAL COMMUNICATION SYSTEM WITHOUT FIBERS or in other words WIRE FREE OPTICS. Free
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2.7 Raman spectroscopy Principle: Raman spectroscopy is based on the use of a laser light to induce oscillation and rotation in human fluids containing glucose. Because the emission of scattered light is influenced by molecular vibration‚ it is possible to estimate glucose concentration in human fluids [24]. This effect depends on the concentration of the glucose molecules. This technique can measure very weak signals‚ even in human fluids. The wavelength range of Raman spectrum is considered to
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performance of one antenna unit is compared with a conventional resonant dipole antenna. The antenna unit has a better capacity of generating THz wave compared with a conventional resonant dipole antenna at the same bias electrical field and the same laser energy. However only 23 % of THz wave transmitted through the ceramic substrate of antenna array‚ if there is a hole drilled through ceramic substrate to release the THz wave‚ the THz amplitude of entire interdigital antenna array with 8 antenna units
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CONTENTS 1) INTRODUCTION 2) A) CONCEPT OF HOLOGRAPHY B) HISTORICAL ROOT C) WHAT IS HOLOGRAM 3) HOLOGRAOHIC MEMORY 4) TECHNIQUE FOR STORING DATA ON A HOLOGRAPHIC MATERIAL 5) SPATIAL LIGHT MODULATOR 6) MULTIPLEXING TECHNIQUE FOR RETREIVING DATA FROM A HOLOGRAOHIC MATERIAL 8) ERROR CORRECTION 9) TECHNICAL SPECIFICATION OF HOLOGRAOHIC DEVICE 10) A) ADVANTAGES B) LIMITATIONS 11) OBSTACLES IN DEVELOPMENT OF HOLOGRAPHIC
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The field of optics is one of the oldest and most important branches of the sciences. Long before the theory of electromagnetism was developed‚ optical phenomena were studied‚ characterized‚ and used as probes of nature. Since the invention of the laser a half-century ago‚ this tool has become the preeminent source for all studies involving light. It too has revolutionized countless areas of high technology including telecommunications‚ data storage‚ semiconductor manufacturing‚ healthcare technology
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access one of our products or a teacher/administrator uses to access SAM. The SAM client will be loaded on teacher and administrator workstations. Applications such as READ 180 will be loaded onto student workstations. Laser Printer (Networked): An "electrostatic" printer that uses laser beam to transfer toner to paper which creates the text and images. Standard Office Software: Word processing such as Microsoft Word. Sales Order Processing: The sales order processing‚ sometimes abbreviated as SOP
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Overview of Garment Manufacturing technology - Concentrating on cutting equipment [Document Subtitle] Abik Hirawat garment |ˈgärmənt| noun an item of clothing. ORIGIN Middle English : from Old French garnement ‘equipment‚’ from garnir ‘equip’ (see garnish ). Garment refers to any covering for the human body that is worn. Garment making is one of the basic content of fashion designing. . There are 2 types of garments. One is Woven garments. Another is Knitted garments Shirts‚ trousers
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5. Results & Discussion : The optical nonlinearity of DASPB doped PMMA-MA polymer film is studied using open aperture and closed aperture Z-scan techniques by means of low power CW laser at different dye-doping concentrations. The open aperture Z-scan study shows that the dye-doped sample shows a considerable amount of saturable absorption property. But at higher input intensity‚ the two-photon absorption and the reverse saturation absorption properties of the dye in polymer film becomes prominent
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