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This paper reviews recent progress in optical protection rings with the focus on transparent optical protection rings. Different… Expand SONET (Synchronous Optical NETworks) add-drop multiplexers (ADMs) are the dominant cost factor in the WDM(Wavelength Division… Expand It took roughly 10 years for the transport network industry to migrate from PDH to SONET. As this technology swap comes to an end… Expand A huge effort is currently put into the research of Quality of Service issues in the internet. Until recently, only little… Expand A silicon germanium (SiGe) receiver IC integrates most of the 10 Gb/s SONET receiver functions previously implemented using GaAs… Expand The two-phase mixture model developed by Baer and Nunziato (BN) to study the deflagration-to-detonation transition (DDT) in… Expand The rapid growth of traffic on the Internet is posing new challenges for transport network providers. Not only do they need low… Expand In high-speed SONET/WDM rings, the dominant system cost may be the cost of electronic components, or in other words, the cost of… Expand Synchronous optical network (SONET) self-healing rings (SHR) are studied in the loop environment. SONET SHR architectures for… Expand The authors discuss aspects of the SONET (synchronous optical network) standards and standardization process, both national and… Expand