Logic cells as basic structures to add/drop WDM information signals

Jose Antonio Martin-Pereda; Ana P. Gonzalez-Marcos

doi:10.1117/12.451587

15 November 2002 Logic cells as basic structures to add/drop WDM information signals

Jose Antonio Martin-Pereda, Ana P. Gonzalez-Marcos

Proceedings Volume 4788, Photonic Devices and Algorithms for Computing IV; (2002) https://doi.org/10.1117/12.451587
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Nowadays, in order to take advantage of fiber optic bandwidth, any optical communications system tends to be WDM. The way to extract a channel, characterized by a wavelength, from the optical fiber is to filter the specific wavelength. This gives the systems a low degree of freedom due to the fact of the static character of most of the employed devices. In this paper we will present a different way to extract channels from an optical fiber with WDM transmission. The employed method is based on an Optically Programmable Logic Cells (OPLC) previously published by us, for other applications as a chaotic generator or as basic element for optical computing. In this paper we will describe the configuration of the OPLC to be employed as a dropping device. It acts as a filter because it will extract the data carried by a concrete wavelength. It does depend, internally, on the wavelength. We will show how the intensity of the signal is able to select the chosen information from the line. It will be also demonstrated that a new idea of redundant information it is the way of selecting the concrete wavelength. As a matter of fact this idea is apparently the only way to use the OPLC as a dropping device. Moreover, based on these concepts, a similar way to route signals to different routes is reported. The basis is the use of photonic switching configurations, namely Batcher or Bayan structures, where the unit switching cells are the above indicated OPLCs.

Citation Download Citation

Jose Antonio Martin-Pereda and Ana P. Gonzalez-Marcos "Logic cells as basic structures to add/drop WDM information signals", Proc. SPIE 4788, Photonic Devices and Algorithms for Computing IV, (15 November 2002); https://doi.org/10.1117/12.451587

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