Wavelength division multiplexing (WDM) switching has been emerging as the dominant technology in optical networks. In this paper, we study the switching performance of WDM optical packet switch (OPS) equipped with tunable wavelength converter sharing dedicated to each output fiber line under self-similar variable packet length traffic. In this study, we model WDM OPS employing tunable wavelengt...

We develop algorithms for the design of optical packet-switched networks. These algorithms are aimed at upgrading an existing ber-based, network infrastructure, such as the NSFNET backbone, by using Wavelength Division Multiplexing (WDM) technology. The network architecture employs wavelength-routing optical switches which enable the establishment of all-optical, WDM channels, called lightpaths...

WDM networks depend on predetermined, fixed wavelength channels, requiring highly stable lasers and tunable filters. Robust WDM networks, based on dynamically selected wavelengths, relax manufacturing and operating wavelength tolerance requirements leading to low-cost implementations. A node dynamically selects a currently unused wavelength for communication, and uses it for a limited period of...

The Internet is emerging as the new universal telecommunication medium. IP over WDM has been envisioned as one of the most attractive architectures for the new Internet. Consequently survivability is a crucial concern in designing IP over WDM networks. This paper presents a survey of the survivability mechanisms for IP over WDM networks. A number of optical layer protection techniques have been...

Most existing wavelength-division multiplexed (WDM) networks employ circuit switching, typically with one session having exclusive use of one entire wavelength. Consequently they are not suitable for data applications involving bursty traac patterns. The All-Optical Network (AON) Consortium has developed an all-optical LAN/MAN testbed which provides time-slotted WDM service 1]. In this paper, w...

The ever-increasing growth of the current Internet traffic volume is demanding a bandwidth which can only be satisfied by means of optical technology. However, while WDM networks will bring an unprecedented amount of available bandwidth, traffic management techniques become necessary in order to make this bandwidth readily available to the end user. In this chapter we provide an overview of tra...

Abstract The apodization profiles improve chirped fiber Bragg grating (CFBG) capability to compensate dispersion which enhances the performance of wavelength division multiplexing (WDM) systems. In this paper, a new profile is proposed enhance and reduces power budget for WDM system. newly implemented CFBG as post compensator in system 100 km. It found transmitted at BER 10 −9 . evaluation comp...

Thin film multilayer narrow bandpass interference filters are widely used in wavelength division multiplexing (WDM) applications in fibre optic communication systems. These filters must have sharp cut-on and cut-off on either side of the passband and practically zero transmittance outside the passband, over the wavelength range of the application. In an effort to demonstrate the feasibility of ...

It took roughly 10 years for the transport network industry to migrate from PDH to SONET. As this technology swap comes to an end, WDM technology is dawning, promising to revolutionize the network industry, with the possibility of transport bit rates above 10 Gb/s as well as transparency to signal encodings. However, a new wave of equipment upgrade is unlikely to happen as current SONET equipme...

In scheduling the transmission of messages in a WDM network, we are facing not only the channel assignment problem but also message sequencing problem In this paper, we propose and evaluate a new reservationbased message scheduling algorithm for single-hop, WDM passive star lightwave network which addresses both the assignment aspect and the sequencing aspect of the problem. We compare the perf...