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Transmission and switching utilizing 1310 nm SOAs. Applications of 1310 nm semiconductor optical amplifiers in fibre-optic telecommunication systems

Автор:   Jaroslaw T.
мягкая обложка
144 страниц
2010 год
Издательство:   Книга по Требованию
2413 руб
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Описание:Optical fibre based transmission systems are an essential part of telecommunication networks. Utilization of the optical fibre 1310 nm wavelength domain has key advantages: absence of chromatic dispersion compensation, use of low cost semiconductor components like semiconductor optical amplifiers (SOAs), and by utilizing transmission parallel to the 1550 nm wavelength domain, better utilization of the legacy fibre resources is achieved. This book is devoted to applications of 1310 nm SOAs in modern fibre optic telecommunication systems. One of the most important issues when designing and building transmission systems is the cost of the network infrastructure, since the end users require delivery of high quality services at low cost. The book is intended for advanced level students, professional communication engineers and academics involved in the research and design of cost effective optical fibre communication systems. Three types of applications are studied: high speed 1310 nm DWDM transmission over short and metro distances, e. g. 4x40 Gbit/s, all optical 1310-to-1550 nm wavelength conversion as well as switching of the 1550 nm data signals by the 1310 nm SOA.

Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка

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Guns, Germs, and Steel: The Fates of Human Societies

The future of AIDS, derived from monkey viruses and first documented in humans around 1959, is even more secure (from the virus's perspective). LETHALGIFT OF LIVESTOCK • Z O 9 The final stage of this evolution is represented by the major, long-established epidemic diseases confined to humans. These diseases must have been the evolutionary survivors of far more pathogens that tried to make the jump to us from animals—and mostly failed. What is actually going on in those stages, as an exclusive disease of animals transforms itself into an exclusive disease of humans? One transformation involves a change of intermediate vector: when a microbe relying on some arthropod vector for transmission switches to a new host, the microbe may be forced to find a new arthropod as well. For example, typhus was initially transmitted between rats by rat fleas, which sufficed for a while to transfer typhus from rats to humans. Eventually, typhus microbes discovered that human body lice offered a much more efficient method of traveling directly between humans ...»

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