As a generalization of the traditional path protection (PP) scheme in WDM networks where a backup path is needed for each active path, the partial path protection (PPP) scheme uses a collection of backup paths to protect an active path, where each backup path in the collection protects one or more links on the active path such that every link on the active path is protected by one of the backup...

Two signal multiplexing strategies for multi-user optical fiber communication are considered: Wavelength-division multiplexing (WDM) and nonlinear frequency-division multiplexing (NFDM), based on the nonlinear Fourier transform (NFT). The inverse NFT is implemented using an approach that is dual of the forward NFT and does not require solving integral equations. In contrast to prior work where ...

We analyze how network throughput degrades in three MAN rings, SONET/SDH, packet-switched, and WDM, following a failure/restoration. For the same ring capacity, WDM rings offer the best network throughput before and after a link failure/restoration.  2001 Optical Society of America OCIS codes: 060.4250 (Networks)

We present WDM multicasting based on dual-pump four-wave mixing in a 3-mm long dispersion engineered silicon waveguide. One-to-six phase-preserving WDM multicasting of 10-Gb/s differential phase-shift-keying (DPSK) data is experimentally demonstrated with bit-error rate measurements. All the six multicast signals show error-free performance with power penalty less than 3.8 dB.

Abstract: WDM transmission performance can be monitored efficiently by blind signal separation methods based on higher-order statistics for WDM-channel extraction. Relative to a recent method, our procedure has reduced complexity, no stability problems, and better performance. c © 2002 Optical Society of America OCIS codes: (060.4510) Optical communications; (070.6020) Signal processing; (070.6...

In this paper we propose a simple model that analyzes the cost saving achieved by Optical IP Switching (OIS), a novel optical architecture, compared to a conventional IP-over-WDM network, where the IP router connects directly to the WDM module. The analysis we propose shows that OIS can bring substantial cost savings in the initial investment of network operators.

In this paper, we demonstrate a wavelength division multiplexing (WDM)-based system for simultaneously delivering ultra-stable optical frequency reference, 10 GHz microwave and one pulse per second (1 PPS) time signal via 50 km fiber network. For each signal, unique noise cancellation technique is used to maintain their precision. After being compensated, the transfer instability in terms of ov...

Given recent developments in our understanding of the Large Magellanic Cloud's (LMC) impact on Milky Way's (MW) dark matter subhalo population, we compare signatures and baryonic physics subhalos MW systems with realistic LMC analogs. In particular, study effects self-interacting (SIDM), warm (WDM), Galactic disk peak maximum circular velocity (Vpeak) function, radial distribution, spatial dist...

Power consumption in IP-over-WDM networks has become a major concern, more so due to rapidly evolving data intensive applications. Increasing power consumption also increases the environmental cost (carbon emission). Carbon emissions are the result of power generation using non-renewable (traditional hydrocarbons) energy resources. Usage of non-renewable energy resources (such as hydrocarbons, ...