pls give details of fiber antennas for free space communicTION ....etc

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In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The emerging coloration is a form of structural coloration. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers.

For practical applications, gratings generally have ridges or rulings on their sur ....etc

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This article is presented by:
DIPTA RANJAN ROY
DEPT OF ECE
BIT, MESRA, RANCHI
EMBEDDED FIBER BRAGG GRATING SENSOR
FOR STRUCTURAL HEALTH MONITORING

OBJECTIVES
To design sensor system using Fiber Bragg Grating for
Structural Health Monitoring (SHM).
To analyze Reflection Spectra ,Transmission Spectra of
different types of Fiber Bragg Grating.
To implement FBG sensors in composite structures,
composite beams etc.
To sense ....etc

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to get information about the topic grating light valve display technology full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-grating-light-valve-display-technology

http://seminarsprojects.net/Thread-grating-light-valve-glv-technology

http://seminarsprojects.net/Thread-grating-light-valve-glv-technology?pid=3805&mode=threaded ....etc

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Send me seminar report on photonic crystal fiber. ....etc

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Grating Light Valve Display Technology

The Cathode Ray Tube TV set has ruled the consumer electronics world for decades. Now a days every one wants big screens for their entertainment rooms. But bigger a CRT screen, the glass tube will be deeper and the set becomes impossibly heavy and unwieldy when the diagonal measurement of the screen goes beyond about 36 inches. Thus the CRT is destined for a slow but sure decline giving way to many new technologies.

All of us must have noted the red colour of the hero's suit in the movie 'spiderman', ....etc

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Reported by: Edward Yin
Student ID: 8920213

Fiber-Optic Communication System Introduction
First, the history of optical fiber communication
Modern optical fiber communication development began in the 1960s, while making the optical has become the main force of the present and future of communication is based upon our two events of excitation: first, in 1960 the U.S. physicist de Umenoto (Theodore Harold Maiman) succeeded in making the ruby oscillation have a laser light. The second was de 1966, scientists Charles Kao (Charles Ka ....etc

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GLV's basis technology




The GLV device is built on a silicon wafer and consists of parallel rows of highly reflective micro-ribbons ribbons of sizes of a few m with a top layer of aluminium suspended above an air gap that are configured such that alternate ribbons (active ribbons are interlaced with static ribbons) can be dynamically actuated. Individual electrical connections to each active ribbon electrode provide for independent actuation. The ribbons and the substrate are electrically ....etc

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Carbon Fiber Reinforced Polymer (CFRP) is a Polymer Matrix Composite material reinforced by carbon fibers.
The reinforcing dispersed phase may be in form of either continuous or discontinuous carbon fibers of diameter about 0.0004 (10 mkm) commonly woven into a cloth. Similar to fiberglass (glass reinforced polymer), the composite material is commonly referred to by the name of its reinforcing fibers (carbon fiber). The polymer is most often epoxy, but other polymers, such as polyester, vinyl ester or nylon,
Carbon fibers ....etc

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SEMINAR ON Fiber Distributed Data Interface (FDDI)
NAME
REG. NO
BRANCH
CONTENTS
INTRODUCTION
STANDARDS
FDDI TRANSMISSION MEDIA
FDDI SPECIFICATIONS
FDDI STATION -ATTACHMENT TYPE
FDDI FAULT TOLERANCE
FDDI FRAME FORMAT
ADVANTAGES
DISADVANTAGES
CONCLUSION


INTRODUCTION
The Fiber Distributed Data Interface (FDDI) specifies a 100-mbps token-passing ,dual ring LAN using fiber-optic

cable.

It is frequently used as high-speed backbone technology because of it s support for high speed bandwidth an ....etc

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