搜索结果: 1-15 共查到“光学工程 ROADM”相关记录19条 . 查询时间(0.046 秒)
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...
ROADM System for Space Division Multiplexing with Spatial Superchannels
ROADM System Space Division Multiplexing Spatial Superchannels
2014/11/6
A two-span SDM system includes the first ROADM supporting spatial superchannels and the first cladding-pumped multicore-EDFA directly spliced to multicore transmission fiber.For 6 ×40 ×128-Gb/s SDM-WD...
Compact PLC-based Transponder Aggregator for Colorless and Directionless ROADM
Buffers couplers routers switches multiplexers Optical switching devices Waveguides planar
2011/5/22
We describe a compact transponder aggregator comprising a splitter-switch and a tunable filter array based on PLC technology. We realize a colorless, directionless and contentionless multi-degree ROAD...
Multi-degree ROADM based on massive port count WSS with integrated Colorless ports
Networks combinatorial network design Switching Circuit
2011/5/22
We propose a simple multi-degree ROADM architecture based on a massive port count WSS with integrated colorless ports. We create a simple multi-ring network and demonstrate the multi-degree colorless ...
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
2011/5/22
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...
Provisioning Schemes Accounting for ROADM Add/Drop Constraints in GMPLS-based WSON
Provisioning Schemes Accounting ROADM Add/Drop Constraints GMPLS-based WSON
2011/5/21
Provisioning schemes exploiting the recently introduced GMPLS extensions for add/drop in WSONs are proposed to effectively handle different ROADM structures and provide a preference on the utilization...
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
2011/5/18
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...
DWDM transmission at 10Gb/s and 40Gb/s using 25GHz grid and flexible-bandwidth ROADM
DWDM transmission 25GHz grid flexible-bandwidth ROADM
2011/5/18
DWDM transmission with flexible-bandwidth ROADM supporting 25GHz-spaced 10G channels and co-propagating 50GHz-spaced 40G channels is studied experimentally. Nonlinear and ROADM-induced OSNR penalties ...
An Outer-ROADM-Ring-Based Multi-Domain Routing Scheme in Optical WDM Networks
Optical WDM Network Outer-ROADM-Ring-Based Outer-ROADM Ring-Based
2011/5/15
We propose a novel outer-ROADM-ring (ORR) based multi-domain routing scheme in optical WDM networks. Results show that this scheme has both high scalability and low blocking probability, while preserv...
CWDM Planar Concave Grating Multiplexer/Demultiplexer and Application in ROADM
CWDM Planar Concave Grating Multiplexer/Demultiplexer ROADM
2011/5/15
We report a SOI based 1×4 coarse wavelength-division-multiplexer (CWDM) planar concave grating multiplexer/demultiplexer and applications in re-configuration optical add/drop multiplexer (ROADM) syste...
Demonstration of Bit Rate Variable ROADM functionality on an Optical OFDM Superchannel
Coherent communications Multiplexing
2010/6/9
We demonstrate a bit rate variable add- and drop function performed on an optical OFDM superchannel signal by optical filtering and superposition of OFDM subbands and the application of different modu...
Quantum Communications in Reconfigurable Optical Networks:DWDM QKD through a ROADM
Fiber optics communications Quantum communications
2010/6/9
We demonstrate coexistence of classical and quantum signals for quantum key distribution in a DWDM reconfigurable networking environment using a ROADM. We show how the limiting noise mechanism can dep...
System Requirements for WSS Filter Shape in Cascaded ROADM Networks
Optical switching devices All-optical networks Fiber optics optical communications
2010/6/8
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...
Impact of ROADM In-band Crosstalk on 40G DPSK Signals
Optical switching devices Fiber optics optical communications
2010/6/5
Transmission penalties of ROADM isolation functions in high capacity systems are quantified using a weighted crosstalk. Excellent correlation between the weighted crosstalk and the OSNR penalty of 40G...
ROADM elements in DWDM optical networks exhibit variations in pass-band amplitude response due to manufacturing variations and supplier diversity. We present a novel statistical approach for ROADM cas...