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A Prototype of Signal Degradation Monitor Based on Wavelength Resolved Stokes Vector Analysis Featuring a Function of Identification of the Cause of Degradation
Optical communications Networks
2015/5/26
We resolved signal degradations due to DGD and OSNR from a single monitor source.We verified a precision of +/-0.2dB of Q-value experimentally with a monitor prototype and 160Gb/s signal.
Relationship between optical wiring conditions and MPI degradation
Fibers single-mode Fiber properties
2015/6/9
Optical wiring conditions are investigated numerically and experimentally with a viewpoint of MPI induced transmission performance degradation. We reveal the impact of the interval of the bending port...
In-service Monitoring of PMD Induced Optical Signal Degradation Using SOP Vector Trajectory on the Poincare Sphere for High-Speed Reconfigurable Optical Networks
PMD Induced Optical Signal Degradation SOP Vector Trajectory Poincare Sphere High-Speed Reconfigurable Optical Networks
2015/7/20
We studied an in-service signal quality estimation method by using wavelength resolved SOP vector trajectories on Poincare Sphere and successfully distinguished PMD induced signal degradation with suf...
Optical Performance Monitoring of Data Degradation by Evaluating the Deformation of an Asynchronously Generated I/Q Data Constellation
Optical Performance Monitoring Degradation Asynchronously Generated I/Q Data Constellation
2015/7/17
We present a technique of using asynchronously generated constellation pattern to simultaneously monitor CD and first order PMD in DQPSK systems. By characterizing deformations in the patterns, the am...
Off-Line Monitoring of OSNR/CD/PMD Degradation Effects Using Neural-Network-Based Training Sequences
Off-Line Monitoring OSNR/CD/PMD Degradation Effects Training Sequences
2015/8/3
A technique using artificial neural networks to simultaneously identify OSNR, CD, and PMD from eye-diagram parameters is demonstrated both via simulation and experimentally in 40 Gb/s OOK and DPSK sys...