搜索结果: 1-14 共查到“光信息技术 Coherent Receiver”相关记录14条 . 查询时间(0.246 秒)
A compact polarization-diversity self-coherent receiver with reduced complexity is proposed. Requirements on input polarization tracking is relaxed by a variant CMA equalizer. Ex-periments are perform...
Real-Time FPGA-Based Intradyne Coherent Receiver for 40 Gbit/s Polarization-Multiplexed 16-QAM
Coherent communications Optical communications
2011/5/25
Real-time detection of a 40 Gbit/s polarization-multiplexed square 16-QAM signal is demonstrated in an FPGA-based intradyne coherent receiver processing 100% of data. A minimum BER of 3.3×10 -5 is ach...
120-Gb/s PDM 64-QAM transmission over 1,280 km using multi-staged nonlinear compensation in digital coherent receiver
120-Gb/s PDM 64-QAM transmission multi-staged nonlinear compensation digital coherent receiver
2011/5/21
We succeed in the long-haul (1,280km) transmission of a 120-Gb/s PDM 64-QAM signal. The transmission distance was extended from 800 km to 1,280 km by a multi-stage nonlinear compensation technique tha...
Characterization of an Integrated Coherent Receiver for 224 Gb/s Polarization Multiplexed 16-QAM Transmission
224 Gb/s Polarization Multiplexed 16-QAM Transmission Coherent Receiver
2011/5/15
An integrated coherent receiver module based on monolithically integrated 90° hybrids and balanced waveguide pin-photodiodes is presented. Optical transmission performance is demonstrated for a 224 Gb...
Recent Progress on Nonlinear Compensation Technique in Digital Coherent Receiver
Fiber optics communications Coherent communications
2010/6/9
Enhanced digital signal processing algorithms are proposed and evaluated experimentally in order to improve the tolerances to intra-channel and inter-channel nonlinear effects of intradyne receiver an...
160-Gb/s Polarization-Multiplexed 16-QAM long-haul transmission over 3,123 km using digital coherent receiver with digital PLL based frequency offset compensator
Fiber Optics Communications Coherent communications
2010/6/9
We demonstrate 160-Gb/s PDM 16-QAM single channel transmission over the longest distance yet to be reported, of 3123.9 km. The coherent receiver employs a frequency offset compensator based on a digit...
Two-Stage Constant Modulus Algorithm Equalizer for Singularity Free Operation and Optical Performance Monitoring in Optical Coherent Receiver
Fiber optics communications Coherent communications Polarization
2010/6/5
A two-stage constant-modulus-algorithm (CMA) equalizer for polarization-demultiplexing in a polarization-division-multiplexed coherent receiver is demonstrated. The equalizer eliminates the singularit...
Compact and Broadband Coherent Receiver Front-End for Complete Demodulation of a 1.12-Terabit/s Multi-Carrier PDM-QPSK Signal
Broadband Coherent Receiver Multi-Carrier PDM-QPSK Signal
2009/7/20
We report a compact coherent receiver front-end consisting of an integrated 4x40 arrayed-waveguide-grating array following a polarization-diversity hybrid for complete demodulation of a 1.12-Tb/s mult...
Multi-staged Nonlinear Compensation in Coherent Receiver for 16,340-km Transmission of 111-Gb/s No-Guard-Interval Co-OFDM
Multi-staged Nonlinear Compensation Coherent Receiver Transmission No-Guard-Interval Co-OFDM
2009/7/20
Evaluation of the back-propagation step size for SPM compensation in a coherent receiver shows that setting step size to the amplifier section length extends the distance of 111Gb/s transmission from ...
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...
200-km transmission of 100-Gbit/s 32-QAM Dual-Polarization Signals using a Digital Coherent Receiver
transmission Dual-Polarization Signals Digital Coherent Receiver
2009/7/16
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 = ...
QAM Adaptation of Constant-Modulus Algorithm and Differential Phase Compensation for Polarization Demultiplex in Coherent Receiver
QAM Adaptation Constant-Modulus Algorithm Differential Phase Compensation Polarization Demultiplex Coherent Receiver
2009/7/16
The constant modulus algorithm is adapted for QAM signals and complemented with a differential phase compensation. This triples polarization control speed and doubles laser linewidth tolerance.
2.6Tb/s (26 x 100Gb/s) Unrepeatered Transmission Over 401km Using PDM-QPSK with a Coherent Receiver
Unrepeatered Transmission PDM-QPSK Coherent Receiver
2009/7/16
The combination of PDM-QPSK with a coherent receiver and an optimized amplification scheme (high power booster and third order pumped ROPA) enables the transmission of 26 channels at 100Gb/s over a 40...
A novel DSP algorithm for improving the performance of digital coherent receiver using single-ended photo detection
DSP algorithm improving the performance digital coherent receiver single-ended photo detection
2008/7/30
A novel digital signal processing algorithm is proposed to improve the performance of digital coherent receivers using single-ended photo detection. The effectiveness of the proposed algorithm is expe...