Why fiber?
Speed- operates at high speed upto gigabits
Bandwidth- large carrying capacity
Resistance- to EM noise
Provide electrical isolation
Distance- Signals can be transmitted further without need of repeaters
Maintenance cost- less
Requirements of digital fiber link
No. of digital signal – 8
No. of fiber cable – 1
Signal frequency- 0-20KHz
I/p-O/p voltage level- 0 & 24 V for (0 & 1 digital logic)
Transmission Range- 300m
Here, we have selected HFBR-1521 transmitter and HFBR-2521 receiver ....etc

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Abstract”
In the presented paper, the principle of frequency domain channel estimation for wireless OFDM systems will be shown. A well known noise reduction technique will be adapted to HIPERLAN/2 and IEEE802.11a standards, and its positive effects will be demonstrated by simulation results. Channel tracking has not been considered by the WLAN standards named above, although it is well known that time-variant indoor radio channels can change their characteristics within one PHY burst. This paper presents some techniques for decision ....etc

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SEMINAR REPORT ON FIBER OPTICS BASED COMPUTER NETWORK
INTRODUCTION
In recent years it has become apparent that fiber-optics are steadily replacing copper wire as an appropriate means of communication signal transmission. They span the long distances between local phone systems as well as providing the backbone for many network systems. Other system users include cable television services, university campuses, office buildings, industrial plants, and electric utility companies.
A fib ....etc

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pls give details of fiber antennas for free space communicTION ....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 itâ„¢s support for high speed b ....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 fiber ....etc

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ARE NATURAL FIBER COMPOSITES ENVIRONMENTALLY SUPERIOR TO GLASS FIBER REINFORCED COMPOSITES?
INTRODUCTION:-
• Natural fibers have been used to reinforce materials for
over 3,000 years.
• Many types of natural fibers have been investigated for
use in plastics .including , Flax, hemp, jute, straw,
wood fiber, rice husks,wheat,barley,oats .
• Natural fibers have the advantage that they are
renewable resources and have marketing appeal.
• Natural fibers are increasingly used in automotive a ....etc

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Seminar Report On Submitted by:VIMAL V.B.
DEPARTMENT OF COMPUTER SCIENCE
COCHIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
COCHIN “ 682022
2005
ABSTRACT
Fiber Channel is an ANSI interface that acts as like a general transport vehicle to simultaneously deliver the command sets of several existing interface protocols. Fiber Channel Arbitrated Loop is one topology used to connect two or more devices within the guidelines set by the ANSI standards. It supports both large and small data transfers, and can be used in systems ranging from s ....etc

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Optical Fiber Communications


1.0 Introduction of Optical Fiber Communications

Our current age of technology is the result of many brilliant inventions and discoveries, but it is our ability to transmit information, and the media we use to do it, that is perhaps most responsible for its evolution. Progressing from the copp cable, our increasing ability to transmit more information, more quickly and over longer distances has expanded the boundaries of our technological development in all areas. ....etc

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fiber antenna for fibre free communication ppts
....etc

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