We discuss how all-optical signal processing might play a role in future all-optical packet switched networks. We introduce a concept of optical packet switches that employ entirely all-optical signal processing technology. The optical packet switch is made out of three functional blocks: the optical header processing block, the optical memory block and the wavelength conversion block. The oper...

Utilizing all-optical parametric processing in a silicon photonic chip, we demonstrate wavelength conversion for 10 and 40-Gb/s NRZ as well as 160-Gb/s pulsed-RZ data signals, and demonstrate eight-way wavelength multicasting at 40-Gb/s NRZ data rates. ©2009 Optical Society of America OCIS codes: (130.7405) Wavelength conversion devices; (190.4380) Nonlinear optics, four-wave mixing

Introduction: One of the key components in all-optical communication networks using the whole low-loss bandwidth of the silica fibre is an ultra-wideband wavelength converter [1]. Use of all-optical ultrawideband wavelength converters enhances network flexibility, allowing an all-optical wavelength conversion between different transmission windows, and therefore avoiding the bottleneck of optic...

In Optical Network contention is one of the big problem. Contention occurs when more than one burst demand for same output wavelength channel in same time. Wavelength conversion and deflection routing are the methods to resolve contention in Optical Network. In this case of wavelength conversion if any contentions occur then one of the burst’s wavelength have to be changed from its current wave...

A wavelength converter is presented that is made out of a semiconductor optical amplifier and an optical bandpass filter. Error-free inverted wavelength conversion is demonstrated at a bitrate of 80 Gbit=s. This approach can be exploited at higher bitrates. A clear open eye indicating error-free wavelength conversion at 160 Gbit=s is also presented. This wavelength converter has a simple config...

We report on all-optical 1310 to 1550 nm wavelength conversion and NRZ-to-RZ data format conversion based on nonlinear polarization rotation in a single semiconductor optical amplifier. Introduction Undoubtedly, the 1310 nm transmission window is experiencing renewed interest. Multi-Gbit/s 1310 nm transmission technology is employed in access and metro networks [1-2]. The long-haul core network...

We fabricate a nonlinear optical device based on a fiber pigtail cross-section coated with a single-layer graphene grown by chemical vapor deposition (CVD) method. Using the fabricated graphene-assisted nonlinear optical device and employing Nyquist 16-ary quadrature amplitude modulation (16-QAM) signal, we experimentally demonstrate phase conjugated wavelength conversion by degenerate four-wav...

An optical cross-connect architecture based on wavelength routing is proposed. The design utilises an input waveband conversion stage followed by an arrayed waveguide grating (AWG) to enable optical switching and an output single wavelength conversion stage for wavelength assignment and regeneration. Arranging the AWG in feedback or foldback loop configuration the requirement for an output mult...