All-optical logic gate operating with single wavelength

All-Optical Wavelength-Shifting Technologies

Sparse-Partial Wavelength Conversion in Wavelength-Routed All-Optical Networks

Wavelength conversion has been shown as one of the key techniques that can improve the blocking performance in a wavelength-routed all-optical network. Given that wavelength converters nowadays are still very expensive, how to make effective use of the limited number of wavelength converters becomes an important issue. In this paper, we propose a novel sparse-partial wavelength conversion (SPWC...

Routing and Wavelength Assignment in Single Hop All Optical Networks with Minimum Blocking

wdm networks offer a technology that can transferred several optical signals into a single optical fiber. This allows for more efficient use of the huge capacity of optical fibers but it also poses new network design and management problems such as routing and wavelength planning. This paper discusses the rwa problem, i.e., the routing and wavelength assignment problem in wdm networks. Given a ...

On Wavelength Translation in All-Optical Networks

Milan Kova cevi c and Anthony Acampora Department of Electrical Engineering Columbia University New York, NY 10027-6699 Abstract In this paper we study the bene ts of wavelength translation in all-optical networks providing clear channel circuit-switching among users. We rst establish approximate analytical models for a static-routing circuit-switched network with an arbitrary topology, both wi...

Performance of All-Optical Networks with Limited-Range Wavelength Conversion

Previous works have shown that wavelength conversion can considerably improve the performance in all–optical networks. However, it is an unrealistic assumption under the current technology and wavelength conversion with a limited range, not a full range, is more promising. In this paper, we propose a new analytic approach for such networks by virtue of the layered–graph where each wavelength is...