搜索结果: 136-150 共查到“光学工程 Coherent”相关记录206条 . 查询时间(0.187 秒)
Dispersion Management in WDM Coherent PDM-QPSK Systems
Dispersion Management WDM Coherent PDM-QPSK Systems
2015/7/20
We show that dispersion management with DCF does not outperform electronic dispersion compensation for WDM coherent NRZ-PDM-QPSK systems, but for time-interleaved RZ-PDM-QPSK systems,dispersion manage...
The Impact of DWDM Channel De-correlation Method in Optical PSK Coherent Transmission Experiment
DWDM Channel Optical PSK Coherent Transmission Experiment
2015/7/20
In a DWDM PSK coherent experiment, the even/odd channel de-correlation overestimates XPM phase noise by two and underestimates its autocorrelation length by 40%, which suggests that enhanced de-correl...
System Benefits of Temporal Polarization Interleaving with 100Gb/s Coherent PDM-QPSK
System Benefits Temporal Polarization Interleaving PDM-QPSK
2015/7/20
We demonstrate, over a NZDSF link, that the system benefits provided by the temporal interleaving of polarization tributaries of 100Gb/s coherent RZ-PDM-QPSK data depend on the WDM system configuratio...
Long Reach and Enhanced Power Budget DWDM Radio-over-Fibre Link Supported by Raman Amplification and Coherent Detection
Enhanced Power Budget DWDM Radio-over-Fibre Link Supported Raman Amplification
2015/7/17
We report on a scalable and enhanced power budget radio-over-fibre system for hybrid-wireless access networks operating at 12.5 GHz DWDM spacing for 5 GHz RF carriers over a 60 km fibre link with Rama...
Electronic Equalization of Polarization Mode Dispersion in Coherent POL-MUX QPSK Systems
Electronic Equalization Polarization Mode Dispersion Coherent POL-MUX QPSK Systems
2015/7/17
We present a comparison of adaptive electronic PMD equalizers for coherent phase - and polarization-diversity QPSK receivers using the multicanonical Monte Carlo method . A 5-tap equalizer using the C...
Nonlinear Phase Noise Mitigation by Polarization Mode Dispersion in Dispersion Managed coherent PDM-QPSK Systems
Nonlinear Phase Noise Mitigation Polarization Mode Dispersion Dispersion Managed coherent PDM-QPSK Systems
2015/7/17
We show by simulation that PMD helps reduce nonlinear phase noise in single-channel coherent PDM-QPSK systems at both 43 and 112 Gbit/s, with improved resilience at 112 Gbit/s.
Non-Linear Propagation Limits and Optimal Dispersion Map for 222 Gbit/s WDM Coherent PM-16QAM transmission
Propagation Limits Optimal Dispersion WDM Coherent transmission
2015/7/17
We investigate through simulation the impact of non-linear propagation on 222Gbit/s WDM coherent PM-16QAM. We show that the best performance is achieved using full electronic dispersion compensation, ...
111 Gb/s Transmission with Compensation of FBG-induced Phase Ripple Enabled by Coherent Detection and Digital Signal Processing
FBG-induced Phase Ripple Enabled Coherent Detection Digital Signal Processing
2015/7/17
We demonstrate that coherent detection combined with digital signal processing can completely compensate for FBG induced phase-ripple. We report penalty free transmission of 40x111-Gb/s POLMUX-RZ-DQPS...
Suppression of Inter-Channel Nonlinearities in WDM Coherent PDM- QPSK Systems Using Periodic-Group-Delay Dispersion Compensators
Inter-Channel Nonlinearities WDM Coherent PDM- QPSK Systems Periodic-Group-Delay
2015/7/17
We show that periodic-group-delay dispersion compensators can significantly suppress inter-channel nonlinearities in a WDM coherent polarization-division-multiplexed quardrature-phase-shift-keying sys...
Use of the Zero Forcing Method for Compensation of Polarization Dependent Loss in Coherent Fiber-Optic Links
Zero Forcing Method Compensation Polarization Dependent Coherent Fiber-Optic Links
2015/7/17
We show that a zero forcing receiver can be used to achieve nearly optimal performance in coherent polarization multiplexed systems. The advantage is in the receiver simplicity relative to the joint d...
Coherent Detection of a 50 Gb/s QPSK Signal Using an InP 90°Hybrid Monolithically Integrated with Balanced Photodetectors
Coherent Detection QPSK Signal Hybrid Monolithically Integrated
2015/7/17
Error-free detection of a single-polarization 50 Gb/s NRZ-QPSK signal using a coherent detector based on monolithic integration of a waveguide 90°hybrid with two pairs of high-speed balanced photo-det...
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
2015/7/17
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...
Experimental 2.5 Gbit/s QPSK WDM Coherent Phase Modulated Radio- over-Fibre Link with Digital Demodulation by a K-means Algorithm
QPSK WDM Coherent Phase Modulated Radio- over-Fibre Link Digital Demodulation K-means Algorithm
2015/7/17
Highest reported bit rate of 2.5 Gbit/s for optically phase modulated radio-over-fibre link employing coherent detection is demonstrated. Demodulation of 3x2.5 Gbit/s QPSK modulated WDM channels, is a...
Accurate Digital Frequency Offset Estimator for Coherent PolMux QAM Transmission Systems
Accurate Digital Frequency Offset Estimator PolMux QAM Transmission Systems
2015/7/17
An accurate blind frequency offset estimator adapted to QAM modulated signal is proposed. For coherent 100Gbit/s QAM PolMux transmission, frequency offset can be recovered with an accuracy of a few kH...
200-km transmission of 100-Gbit/s 32-QAM Dual-Polarization Signals using a Digital Coherent Receiver
transmission Dual-Polarization Signals Digital Coherent Receiver
2015/7/16
We demonstrate transmission of a 100-Gbit/s 32-QAM dual-polarization signal over a 200-km dispersion-managed fiber link using a digital coherent receiver. The receiver sensitivity of -20 dBm at BER = ...