Multifiber WDM Networks

Part of the Network Theory and Applications book series (NETA, volume 6)


Computer and communication networks have changed the world dramaticall in the 20th century anf will continue to do so in the future. Over the last two decades, optical fibers have revolutionized the communications industry. Researchers have been driven by a vision of accessing a larger fraction of the addroximatelv 50-THz throtetical information bandwidth of single-mode fiber. With the advancement of optical technologies, a wide variety of optical components for building WDM networks have been developed, such as wide-band optical amplifiers (OAs), optical add/drop multiplexers (OADMs) and optical cross-connects (OXCs). A natural approach to utilize the fiber band width efficiently is to partition the usable bandwidth into non-overlapping wavelength bands. Each wavelength, operating at several gigabits per second, is used at the electronic speed of the end-users. The use of wavelengths to route data is referred to as wavelength routing, and a network which employs this technique is known as a wavelength-routed network [1]. In such networks, each connection between a pair of nodes is assigned a path through the network and a wavelength on that path, such that connections whose paths shate a common link in the network are assigned different wavelengths. The optical communication path between two nodes is called a lightpath. All-optical networks employing wavelength-division multiplexing and wavelength routing are a viable solution for futute widearea networks (WANs) and metropolitan-area networks (MANs).


Wavelength Conversion Wavelength Assignment Wavelength Converter Ring Network Short Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  1. 1.Axiowave Networks, Inc.MarlboroughUSA
  2. 2.Department of Electrical and Computer EngineeringIowa State UniversityAmesUSA

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