Free Space Optics

Mention optical communication and most people think of fiber optics. But light travels through air for a lot less money. So it is hardly a surprise that clever entrepreneurs and technologists are borrowing many of the devices and techniques developed for fiber-optic systems and applying them to what some call fiber-free optical communication. Although it only recently, and rather suddenly, sprang into public awareness, free-space optics is not a new idea. It has roots that go back ....etc

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ppt on fault detection in railway tracks using fiberoptics
want ppt on fault detection in railway tracts using fiber optics
ppt on fault detection in railway tracts using opticalfiber
....etc

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ppt for adative optics in ground based telescopes ....etc

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please provide heads up display ppt for seminar ....etc

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which modulation technique is widely used in optical fiber communication?and why?
can we use ofdm signals in optical communication?and how?

sir,
i want all study report related to optical fiber communication .
i will study those material for submitting seminar and also clear my doubt about modulation techniques in optical communication.
this field/topic is my area of interest,and i really want to study,try to implement it.
thank you!


regards
jayant muley ....etc

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Free Space Optics

Mention optical communication and most people think of fiber optics. But light travels through air for a lot less money. So it is hardly a surprise that clever entrepreneurs and technologists are borrowing many of the devices and techniques developed for fiber-optic systems and applying them to what some call fiber-free optical communication. Although it only recently, and rather suddenly, sprang into public awareness, free-space optics is not a new idea. It has roots that go back ....etc

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smart coat with biomedical sensors for walking patients collision accident avoidance system using ultrasonic sensors
smart coat with biomedical sensors for walking patients collision accident avoidance system using ultrasonic sensors
smart coat with biomedical sensors for walking patients collision accident avoidance system using ultrasonic sensors ....etc

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pls give me fibre optic sensors for high temperatures ppt ....etc

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Definition
Mention optical communication and most people think of fiber optics. But light travels through air for a lot less money. So it is hardly a surprise that clever entrepreneurs and technologists are borrowing many of the devices and techniques developed for fiber-optic systems and applying them to what some call fiber-free optical communication. Although it only recently, and rather suddenly, sprang into public awareness, free-space optics is not a new idea. It has roots that go back over 30 years--to the era before fiber-optic cable b ....etc

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submitted by:
SAURABH DWIVEDI


ABSTRACT
FIBRE-OPTICS COMMUNICATION
Most reference materials that discuss the historical perspective mention about Indian smoke signals. None of these primitive systems was secure due to the spreading of the unguided light. Ideally, a communication system should be secure and should not require installation of a cumbersome physical media. Fiber optics satisfied these desires, and as early as 1958, fiber-optic equipment was being focused for use in the factory. The ....etc

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