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Comment on “Nonreciprocal Light Propagation in a Silicon Photonic Circuit”
Nonreciprocal Light Propagation Silicon Photonic Circuit
2012/8/7
We show that the structure demonstrated by Feng et al. (Reports, 5 August 2011, p. 729)cannot enable optical isolation because it possesses a symmetric scattering matrix. Moreover,one cannot construct...
Hybrid Circuit/Packet Technologies for Future Optical Internet
Networks network optimization network survivability
2011/5/25
Dynamic capacity migration between circuit and packet networks is an unexplored topic, but it can be an effective way to improve network utilization. We discuss techniques for dynamic capacity sharing...
Optical Packet and Circuit Simultaneous Transmission Technologies for Dynamic Lightpath Setup/Release and Packet Traffic Change
Optical Packet Circuit Simultaneous Transmission Technologies Dynamic Lightpath Setup/Release Packet Traffic Change
2011/5/20
For dynamic traffic change on packet/lightpath integration, all-bandwidth amplifiers and high dynamic-range packet receivers are developed. 80-Gbit/s colored optical packets and 8-lightpaths simultane...
Benefits of Integrated Packet/Circuit/Wavelength Switches in Next-Generation Optical Core Networks
Benefits Integrated Packet Circuit Wavelength Switches Next-Generation Optical Core Network
2011/5/18
We investigate the use of integrated packet/circuit/wavelength switches in next-generation optical core networks and compare different node architectures for a 46 node,25,840 route-km US network.
High-speed circuit technology for 10-Gb/s optical burst-mode transmission
Network Optical communications
2010/6/11
A careful choice of burst-mode 3R receiver circuits achieves fast settling of 200 ns and low power of 1.68 W as well as the optical sensitivity and dynamic range in the 10G-EPON specification.
Experimental Demonstration of OpenFlow Control of Packet and Circuit Switches
Networks circuit-switched Networks packet-switched
2010/6/9
OpenFlow is presented as a unified control plane and architecture for packet and circuit switched networks. We demonstrate a simple proof-of-concept testbed, where a bidirectional wavelength circuit i...
Packet and Circuit Network Convergence with OpenFlow
Packet Circuit Network Convergence OpenFlow
2010/6/9
IP and Transport networks are controlled and operated independently today, leading to significant Capex and Opex inefficiencies for the providers. We discuss a unified approach with OpenFlow, and pres...