222 Abstract— An alternate routing can improve the blocking performance of an optical network by providing multiple possible paths between source and destination nodes. Wavelength conversion can also improve the blocking performance of an optical network by allowing a connection to use different wavelengths along its route. But wavelength conversion scheme is not an economical proposition. We p...

"Transparent network" and "all-optical network" are not synonyms. Optical transparency has to be sacrificed in optical logic elements. The paper presents author’s original view on future (all) optical packet-switched network which is based on a clear distinction within dual nature of optical signals: analogue and transparent features of the signal in optical frequency domain from one side, and ...

A simple all-optical logic device, composed of an SOA and an optical filter, is proposed. By utilizing optical filtering, multi-logic functions (AND, OR and XOR) are demonstrated at 10 Gb/s using the same setup, under different operation conditions. Simulations indicate that the device can operate at much higher bit rate. Introduction: All-optical logic gates have received considerable attentio...