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Flexible and Compact Hierarchical Optical Cross-Connect Node with Waveband Add/Drop Restriction
Fiber optics optical communications Switching circuit
2015/5/22
flexible and compact hierarchical optical cross-connect (HOXC) node that considers a practical waveband add/drop restriction is proposed. We introduce a prototype HOXC system and verify its technical ...
2.3-Tbit/s (23 X 100-Gbit/s) RZ-DQPSK Grooming Switch (Simultaneous Add/Drop, Data Exchange and Equalization) Using Double-Pass LCoS and Bidirectional HNLF
Fiber optics communications Nonlinear optics four-wave mixing
2015/5/22
We present a 2.3-Tbit/s network switching element by exploiting double-pass LCoS technology and bidirectional nonlinear effects inside a single HNLF. We demonstrate 2.3-Tbit/s grooming switch with sim...
Provisioning Schemes Accounting for ROADM Add/Drop Constraints in GMPLS-based WSON
Provisioning Schemes Accounting ROADM Add/Drop Constraints GMPLS-based WSON
2015/5/21
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...
Less than 0.19-dB Transient Gain Excursion AGC-EDFA with Digital Control for 20-Channel Add/Drop Equivalent Operation
Transient Gain Excursion AGC-EDFA Digital Control 20-Channel Add/Drop
2015/5/20
We have developed a digitally controlled AGC-EDFA by combining an FF-controlled pump-LD and an FB-controlled VOA. An FPGA is used to finely tune the gain setting of the pump current with a wide dynami...
Integrated Drop-Filter for Dispersion Compensation Based on SOI Rib Waveguides
Dispersion compensation devices Integrated optics devices
2015/6/8
A drop-filter for dispersion compensation based on tapered Bragg gratings in SOI waveguides is presented. We show fabrication and characterization of the device, which separates one WDM channel with a...
Development of Novel Cicada-Resistant Optical Drop Cable
Development Novel Cicada-Resistant Optical Drop Cable
2015/6/5
By observation of cicada ovipositor’s movement, we found that tensile strength and hardness of sheath material are effective against cicada attack.. And also, we have newly designed the optical drop c...
Impacts of Waveband Capacity and Waveband Add/Drop Ratio on the Performance of ROADM-Ring Connecting Hierarchical Optical Path Cross-Connects
Networks assignment routing algorithms Networks ring
2015/6/5
We analyze the performance of a multiple-ROADM-ring connected network that utilizes Hierarchical Optical Cross-Connects (HOXC). We clarify the impacts of the waveband capacity and waveband add/drop ra...
OTDM Add–Drop Multiplexer using a Saw-Tooth Pulse Shaper
OTDM Add–Drop Multiplexer Saw-Tooth Pulse Shaper
2015/8/6
We experimentally demonstrate the use of saw-tooth control pulses to enhance the performance of time-domain add–drop multiplexers based on cross-phase modulation in fibre and subsequent offset filteri...
Demonstration of Bidirectional Add Drop Multiplexers and Mixed Signals in a DWDM Mesh Architecture
Bidirectional Add Drop Multiplexers Mixed Signals DWDM Mesh Architecture
2015/8/6
We demonstrate network integration of passive BADMs using Dense Wave Division Multiplexing (DWDM). Full duplex transmission in a fully interconnected fiber ring architecture supports analog and digita...
640 Gbit/s Time-Division Add-Drop Multiplexing using a Non-Linear Polarisation-Rotating Fibre Loop
Time-Division Add-Drop Multiplexing Non-Linear Polarisation-Rotating Fibre Loop
2015/7/31
We report the first demonstration of error-free 640 Gbit/s time-division add-drop multiplexing, performed by non-linear polarisation-rotation using a loop with a polarisation-maintaining HNLF.
Optical Packet Add/Drop Multiplexers for packet ring networks
Optical Packet Add/Drop Multiplexers packet ring networks
2015/7/30
The introduction of xPONs creates new needs in the upper network segments. The French National project,ECOFRAME, proposes a WDM metro network concept to offer optical transparency and packet granulari...
Loss-induced onÕoff switching in a channel addÕdrop filter
Loss-induced switching channel drop lter
2015/8/12
We introduce a mechanism that provides an on/off switching capability in channel add-drop filter structures.These filters consist of two waveguides, a bus and a drop, coupled through a fre...
Coupling of Modes Analysis of Resonant Channel Add–Drop Filters
Coupled-mode analysis FDTD method optical fi lters optical waveguides resonators
2015/8/12
The operation principle of resonant channel add–drop filters based on degenerate symmetric and antisymmetric standing-wave modes has been described elsewhere using group theoretical arguments. I...
Mode-Coupling Analysis of Multipole Symmetric Resonant Add/Drop Filters
Mode-Coupling Analysis Multipole Symmetric Resonant Add/Drop Filters
2015/8/12
Time-dependent mode-coupling theory is used to analyze a type of resonant add/drop filter based on the excitation of degenerate symmetric and antisymmetric modes. Flat-top transfer functions are...