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Chalcogenide Glass, Advanced for All-Optical Processing

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Ultrafast photonic integrated circuits could benefit next-generation optical communications systems.

Benjamin J. Eggleton, Vahid G. Ta’eed and Barry Luther-Davies, Centre for Ultrahigh-bandwidth Devices for Optical Systems

To operate at high bit rates of 160 Gb/s and beyond, optical communications systems must be able to process signals entirely in the optical domain, thereby overcoming the speed limitations associated with optoelectronic conversion. All-optical signal processing involves the control of light by light, which is possible only in a nonlinear optical material. Before the adoption of wavelength division multiplexing (WDM) in the 1990s, the only means of expanding the bandwidth of an optical system was to increase its data rate. Therefore, twenty years ago a lot of effort was devoted to...Read full article

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    Published: September 2007
    Glossary
    astronomy
    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
    astronomyBasic ScienceCommunicationsFeaturesindustrialoptical communications systemsoptical domainsignals

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