搜索结果: 31-45 共查到“光学工程 Monitoring”相关记录58条 . 查询时间(0.226 秒)
Front Side Power Monitoring in TO-Can RSOA Module with Monitoring Photodiode and Thermoelectric Cooler
Semiconductor optical amplifiers Optical communications
2010/6/4
We reports power monitoring characteristics in RSOA TO-module with m-PD, TEC and thermistor. By monitoring output power at the front of RSOA, monitor current linearity can be improved and monitoring w...
Experimental Comparison of Performance Monitoring Using Neural Networks Trained with Parameters Derived from Delay-Tap Plots and Eye Diagrams
Fiber optics communications Pattern recognition neural networks
2010/6/4
We experimentally demonstrate the use of artificial neural networks trained with parameters derived from both delay-tap plots and eye diagrams for multi-impairment monitoring in a 40-Gbit/s non-return...
OSNR Monitoring Technique for PDM-QPSK Signals Based on Asynchronous Delay-Tap Sampling Technique
Fiber optics communications Fiber optics links subsystems
2010/6/4
We propose and demonstrate a new technique for monitoring the individual OSNR of each polarization tributary of PDM-QPSK signals. The results show that the performance of this technique is not sensiti...
Demonstration of Simultaneous OSNR and CD Monitoring using Asynchronous Delay Tap Sampling on an 800 km WDM Test Bed
Simultaneous OSNR CD Monitoring Asynchronous Delay Tap Sampling WDM Test Bed
2009/7/20
We demonstrate simultaneous monitoring of OSNR and CD using asynchronous delay-tap sampling on a commercial WDM system. Accuracies of 0.5 dB for OSNR and 30 ps/nm for CD was obtained in the presence o...
Optical Performance Monitoring for Intelligent Networks
Optical Performance Monitoring Intelligent Networks
2009/7/20
Optical Performance Monitoring is a key enabler for fully reconfigurable and transparent optical networks. In this paper we review the technologies and challenges for monitoring 40G/100G networks with...
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
2009/7/20
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
2009/7/17
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...
XPM Tolerant Adaptive Carrier Phase Recovery for Coherent Receiver Based on Phase Noise Statistics Monitoring
XPM Tolerant Adaptive Carrier Phase Recovery Coherent Receiver Phase Noise Statistics
2009/7/17
According to the monitored phase noise statistics, the averaging weights in carrier phase recovery is adaptively optimized. Comparing with existing optimization techniques, 1dB Q value improvement can...
Optical Performance Monitoring of PSK Data Channels Using Artificial Neural Networks Trained with Parameters Derived from Delay-Tap Asynchronous Diagrams via Balanced Detection
Optical Performance Monitoring PSK Data Channels Artificial Neural Networks Trained Parameters Derive
2009/7/17
We demonstrate a technique of using artificial neural networks for optical performance monitoring of PSK data signals. Parameters for training are derived from delay-tap asynchronous diagrams using ba...
Low Cost Multi-Impairment Monitoring Technique for 43 Gbps DPSK and 86 Gbps DP-DPSK Using Delay Tap Asynchronous Sampling Method
Multi-Impairment Monitoring Technique DPSK DP-DPSK
2009/7/17
We present a novel low cost method of multi-impairment monitoring for 43 Gbps DPSK using delay tap asynchronous sampling with 12 GHz receivers. This technique is also demonstrated for 86 Gbps DP-DPSK ...
In-Band OSNR Monitoring via Slow-Light Enhanced Third Harmonic Generation in Silicon Photonic Crystal Waveguides
In-Band OSNR Monitoring Slow-Light Enhanced Third Harmonic Generation Silicon Photonic Crystal Waveguides
2009/7/16
We demonstrate optical performance monitoring of in-band OSNR in 40Gbit/s Return-to-Zero signals via slow-light enhanced third-harmonic generation in silicon photonic crystal waveguides, improving on ...
Novel Technique for On-Site Signal-Monitoring in PON Systems without Service Interruption
Novel Technique Signal-Monitoring PON Systems Service Interruption
2009/7/14
We propose an on-site signal-monitoring technique using a mechanically-induced long-period grating(LPG) for monitoring specific service signals without service interruption. Using the LPG, leaked sign...
Dissemination of Monitoring Information in Transparent Optical Networks
Dissemination Monitoring Information Transparent Optical Networks
2009/7/14
The PCE architecture is designed to be a cost-effective solution for computing optimal paths in next-generation core networks. In this paper we propose a method for disseminating optical monitoring in...
Real-Time Monitoring of the Surface Modification of Root Dentin Using MIR-FEL-Induced Acoustic Waves
Real-time monitoring Photoacoustic spectroscopy Root surface caries
2009/6/10
For a non-invasive laser treatment, a real-time and non-contact monitoring technique is needed. We have investigated the extent of the surface modification of root dentin using photoacoustic spectrosc...
In-Process Monitoring and Adaptive Control in Laser Micro-Spot Welding of Copper
Micro-spot welding of copper Combined laser beams In-process monitoring
2009/6/9
A new procedure of in-process monitoring and adaptive control is developed for micro-spot welding of 0.1-mm-thick copper sheets with combined beams of an AO Q-switched second harmonic YAG laser and a ...