Nuclear Fiber optic communication
Introduction: from the very beginning of world civilization, this world has experienced three revolutionary changes. The first revolutionary change came through the advent of agricultural system. The second came with the inversion of steam engine industrial revolution. The third one is the information revolution that conquered and linked all the corners of the world. Today, the world has become very small and integrated by the virtue of advanced communication systems and channels.
Origin of the fiber optic communication system: using light as a form of communication is by no means a recent development. One of the first forms of optical communication was using the fire and smoke signals. Technically speaking, a simple gesture such as waving your and comes under the preview of communication since it requires the presence of light performing the some gesture in a darkroom will not evoke response from the other party.
What is optical fiber: the optical fiber is a way for transporting light in fiber is essentially trapped within it because the core of the fiber has a higher reflective index then the cladding. As the optical signal traverses the fiber, it diminishes in power because of loos in the fiber.
The concept is starting forward and elegant, however, its implementation is by no means trivial but rather completed.
Spread of fiber optic communication: the fiber optic communication system is encircling the world very first. The demand for optical fiber today is almost unimaginable. Fiber is being deployed worldwide at a rate of about 500 km per hour. The giant fiber manufactures such as corning and lucent technologies are sold out of their fiber for next 11 to 12 months. Data and voice traffic are increasing at a rate of about 80 percent and 10 percent per year respectively.
Advantages of fiber communication: firstly, optical fibers are compact, lightweight and have the ability to transfer large amounts of information, second, optical fiber, be they silica based glass or plastic, are insulators and therefore, have no currents flowing in them. As a result fibers are immune to electromagnetic interference. Thirdly, fiber system cannot be trapped into without being detected. His degree of security is essential for systems transferring sensitive information such as national security and military issue. Fourth, another advantage of optical fiber is that they do not corrode.
Optical fiber communication and Bangladesh:like developed countries, there have been great strides in progress of fiber optic technology in Bangladesh. The focus of research and development has evolved from reducing the losses in a fiber to trying to perform all optical networking, the holy grail of fiber optic communication. Fiber optics has found applications in telephone trunks, subscriber service, broadest and cable TV, data communication and sensors.
Conclusion: above discussion shows that any country that lagged behind fiber optic communication means it’s lagging behind modern science and technology. As Bangladesh has missed to manipulate the opportunities of submarine cables, the people of the country must pay for this. Thus, our government should take quick decision on the issue of submarine cable; any delay to take decision may have to pay more.
Treaty Since nuclear weapons ceased to be the monopoly of any one nation, the danger of its spreading among other peoples has posed a serious threat to the peace of the world. The principle of its manufacture being known, any government prepared to foot the bill—(which of course would run to astronomical figures)—is now in a position to have its own arsenal of atomic weapons. Fear of a nuclear war—with China on the war-path—is almost a nightmare that hunts humanity ; imagination staggers to contemplate what the spread of such weapons would spell for the future of mankind. The dangers even now are sufficiently grave. The outfall from centers, where such weapons are made and experiments are carried out, is already a source of grave risk to the immediate neighborhood. The explosion of as atomic bomb for test purposes contaminates the surrounding atmosphere ; the nature and extent of such contamination are unknown. If a real war breaks out, it may be, for all we know, the end of mankind ; the Frankenstein monster would have done its worst. With big nations—like the U.S.A., the U.S.S.R., the People's Republic of China viewing each other with veiled or open hostility, anything may happen at any time. No one can view this prospect with equanimity. It is from this growing realization of potential danger that the nuclear powers, with the exception of China decided to formulate plans for meeting the situation. The movement arose out of the Geneva disarmament conference. The great powers were not prepared for any comprehensive plan of disarmament. They could only think of in terms of checks on the proliferation of nuclear armaments. With this object, they drew up a treaty providing that the nuclear powers must refrain from expanding their nuclear arm, and the signatories to this treaty pledged themselves not to manufacture atomic weapons. These are the main provisions ; the question—how far they will contribute to the achievement of the desired end ? The treaty has been signed by U.S.A., U.S.S.R. and Great Britain. France has refused to sign it, though she has declared her intention of observing its provisions in spirit. India also has declined to sign it. Her objection is that it makes a distinction between nuclear and non-nuclear nations that is wrong in principle, and dangerous in implications. It will not prevent a nuclear war. The promise to protect non-nuclear powers in case of a nuclear attack puts the former on a permanent basis of inferiority. This is morally wrong and politically unsound. The only way to meet the situation is the complete destruction of nuclear warhead. That India's lead is being followed by other developing nations in Asia and Africa considerably reduces the force of the treaty. It is difficult to envisage complete banning of nuclear weapons. In the first place, if China remains outside the comity of nations, and refuses to join any common programme, the incentive to banning the weapon will be gone. Whatever is done, must be done with China's approval. Secondly, the drafting of a treaty must not be a sort of private arrangement among a few privileged nations, but must have a firm basis of unforced unanimity. A solution to be binding should emanate from a source in which each nation has confidence. It cannot be imposed from a position of superiority. And yet for the sake of humanity, to prevent the use of this terrible weapon of destruction, something has to be done, and it is in the interest of all, that something is made effective by as wide a consensus as possible.
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