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Erbium-doped Fiber Amplifiers Principles And Applications Pdf

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Invented in , EDFA is now most commonly used to compensate the loss of an optical fiber in long-distance optical communication. Another important characteristic is that EDFA can amplify multiple optical signals simultaneously, and thus can be easily combined with WDM technology. EDFAs are used as a booster, inline, and pre-amplifier in an optical transmission line, as schematically shown in Figure 2. The booster amplifier is placed just after the transmitter to increase the optical power launched to the transmission line.

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In Dr. In , he joined Alcatel-Alsthom Recherche in France. He is a contributor to the book Fiber Lasers and Amplifiers and is the author or coauthor of more than 90 technical papers. He received his Diploma of Advanced Studies in the field of theoretical physics from the University of Paris in and his PhD in physics from the University of Nice two years later. He spent two years in postdoctoral research at Stanford University.

The pair-induced quenching PIQ effect in a highly doped bismuth oxide-based erbium-doped fiber amplifier EDFA was theoretically and experimentally investigated. In the theoretical investigation, the bismuth oxide-based EDFA was modeled as a 6-level amplifier system that incorporated clustering-induced concentration quenching, cooperative up-conversion, pump excited state absorption ESA , and signal ESA. The impacts of the PIQ on the gain and the noise figure were also investigated. Download PDF. Article Info.

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An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity , or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. They are used as optical repeaters in the long distance fiberoptic cables which carry much of the world's telecommunication links. There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers.

Optical Components for Communications pp Cite as. Optical communication systems are now widely spread over the entire earth. The world-wide link of optical fibers for signal transfer is more than 10, km. Even though the loss of optical fibers is as low as 0. Therefore, the optical signals must be amplified after they propagate in the fiber for significant distances.

Erbium-Doped Fiber Amplifier (EDFA)

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Erbium doped fiber amplifiers is an important technology for lightwave voice, data, and cable TV transmission. This book covers the developmental issues of EDFAs that are relevant to modern telecom applications. It is intended for researchers, development engineers, and system designers in fiber-optic communications. Read more HathiTrust Digital Library, Limited view search only.

Journal of the Optical Society of America B

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Erbium-doped fiber amplifiers : device and system developments

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Implementation of three functional devices using Erbium