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Persistent Channel Power Deviations in Constant Gain Amplified Long-Chain ROADM Networks
Channel Powe Deviations Constant Gain Long-Chain ROADM Networks
2015/5/15
Numerical simulations of the evolution of the channel power response to power adjustments in constant gain amplified degree-2 ROADM networks demonstrate novel persistent and periodic distant-dependent...
Optical Switch Architectures for Emerging Colorless/Directionless/Contentionless ROADM Networks
Fiber optics and optical communications Buffers couplers routers switches multiplexers Fiber optics communications Networks wavelength routing
2015/5/22
Next generation reconfigurable architectures are starting to be deployed by carriers worldwide. This paper focuses on emerging Colorless, Directionless and Contentionless (C/D/C)ROADM architectures us...
Assessment of Capacity Upgrade Using 40Gbps DPSK Transmission in 10Gbps DWDM ROADM Networks
Assessment of Capacity Upgrade Using 40Gbps DPSK Transmission in 10Gbps DWDM ROADM Networks
2015/5/18
We present a detailed study for capacity upgrade using 40Gbps DPSK transmission in 10Gbps optimized 50GHz spaced DWDM ROADM systems. It was found that further optimizing the chromatic dispersion pre-c...
System Requirements for WSS Filter Shape in Cascaded ROADM Networks
Optical switching devices All-optical networks Fiber optics optical communications
2015/6/8
We describe the impact of passband shape and random center frequency variations on the bandwidth narrowing caused by successive filtering in concatenated wavelength-selective switches. Passband flatne...