Free space optical communications is a line-of-sight (LOS) technology that transmits a modulated beam of visible or infrared light through the atmosphere for broadband communications. In a manner similar to fiber optical communications, free space optics uses a light emitting diode (LED) or laser (light amplification by stimulated emission of radiation) point source for data transmission. However, in free space optics, an energy beam is collimated and transmitted through space rather than being guided through an optical cable. These beams of li ....etc

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Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information.First developed in the 1970s, fiber-optics have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed wo ....etc

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ABSTRACT

Multiterabit/s, ultrahigh-speed optical transmissions over several thousands of kilometers on fibers are becoming reality. The group velocity dispersion (GVD) imposes severe limit on information carrying capacity of optical communication systems. By choosing appropriate pulse shape highly stable light pulses known as solitons are generated when effect of GVD is balanced by self-phase modulation (SPM). The application of solitons in communication systems opens the way to ultrahigh-spee ....etc

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optical fiber communication john m senior ppt

1. Optical Fiber Communications Communications Principles and Practice Optical Fiber Third Edition JOHN M. SENIOR This highly successful book, now in its third edition, has been extensively updated to include both new developments and improvements to technology and their utilization within the optical fiber global communications network. The third edition, which contains an additional chapter and many new sections, is now structured into 15 chapters to facilitate a logical progression of the materi ....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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