搜索结果: 16-30 共查到“光学仪器及技术 Coherent”相关记录42条 . 查询时间(0.092 秒)
Linear Coherent Optical Receivers
Integrated optoelectronic circuits Coherent communications Phase modulation Fiber optics links and subsystems
2010/6/8
The development of linear coherent receivers at UCSB is reviewed. The progression of the feedback receiver architecture toward closer integration, lower feedback delay and higher performance is outlin...
2038Km and Four 50GHz OADM/Filters Transmission Field Trial of 115.2 Gb/s Coherent CoFDM Modem in the Telstra Network
Optical Communication Fiber optics optical communications
2010/6/5
We present results of a 115.2Gb/s, coherent frequency division multiplexed (CoFDM)transceiver across a 2038km link in the Telstra network. The link had 50GHz channel spacing and the transceiver traver...
Self-Coherent Optical Transmission Using a Narrow Linewidth Tunable Slotted Fabry-Perot Laser
Coherent communication Semiconductor lasers
2010/6/4
A narrow linewidth slotted Fabry-Perot laser has been employed in a self-coherent optical transmission system. A comparison of the system performance of the tunable slotted laser with a SG-DBR laser h...
Improvement of Phase Noise Compensation for Coherent Optical OFDM via Data-Aided Phase Equalizer
Modulation Coherent communications
2010/6/4
We report a novel data-aided phase equalizer for coherent optical OFDM systems with RF-pilot enabled phase noise compensation. Simulation results corroborate the superior performance for different RF-...
Ghost imaging with partially coherent light radiation through turbulent atmosphere
Ghost imaging partially coherent light radiation turbulent atmosphere
2009/9/4
Based on the classical optical coherent theory and the extended Huygens-Fresnel integral, ghost imaging with partially coherent light radiation through turbulent at-mosphere has been studied. The anal...
240-Gb/s Polarization-Multiplexed 64-QAM Modulation and Blind Detection Using PLC-LN Hybrid Integrated Modulator and Digital Coherent Receiver
Polarization-Multiplexed 64-QAM Modulation Blind Detection PLC-LN Hybrid Integrated Modulator Digital Coherent Receiver
2009/7/20
We demonstrate 240-Gb/s 64-QAM signal modulation and detection. 20-Gbaud 64-QAM signals are generated employing hybrid integration of silica PLCs and LiNbO 3 phase modulators, and demodulated with a d...
Nonlinear Penalty Reduction Induced by PMD in 112 Gbit/s WDM PDM-QPSK Coherent Systems
Nonlinear Penalty PMD WDM PDM-QPSK Coherent Systems
2009/7/20
We show by simulation that when linear PMD is fully compensated by the receiver, the presence of DGD along the link reduces the amount of residual nonlinear penalty in 112 Gbit/s PDM-QPSK coherent sys...
Systematic Analysis on Multi-Segment Dual-Polarisation Nonlinear Compensation in 112 Gb/s DP-QPSK Coherent Receiver
Systematic Analysis Dual-Polarisation Nonlinear Compensation DP-QPSK Coherent Receiver
2009/7/20
Dependencies on segment number, dispersion map, and fibre launched power were investigated experimentally and numerically. Uncompensated 25 spans standard SMF link can enjoy net Q gain of 1.7dB with 2...
Dispersion Management in WDM Coherent PDM-QPSK Systems
Dispersion Management WDM Coherent PDM-QPSK Systems
2009/7/20
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...
System Benefits of Temporal Polarization Interleaving with 100Gb/s Coherent PDM-QPSK
System Benefits Temporal Polarization Interleaving PDM-QPSK
2009/7/20
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...
Electronic Equalization of Polarization Mode Dispersion in Coherent POL-MUX QPSK Systems
Electronic Equalization Polarization Mode Dispersion Coherent POL-MUX QPSK Systems
2009/7/17
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
2009/7/17
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.
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
2009/7/17
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...
The signal and local oscillator acquire identical nonlinear phase shifts during propagation in a self-homodyne coherent system. We exploit this to achieve cancellation of the phase distortion caused b...
Analysis and Dimensioning of Fully Digital Clock Recovery for 112 Gb/s Coherent Polmux QPSK Systems
Fully Digital Clock Recovery Coherent Polmux QPSK Systems
2009/7/16
Combined effect of polarization mixing and Differential Group Delay (DGD) on sinusoidal and random jitter tolerance is investigated. Requirements for tolerable DGD, loop bandwidth and loop delay are e...