搜索结果: 1-10 共查到“光通信器件与系统技术 Comparison”相关记录10条 . 查询时间(0.16 秒)
Comparison of OFDMA and SC-FDMA Channel Access Techniques in a Passive Optical Network Environment
Comparison OFDMA SC-FDMA Channel Access Techniques Passive Optical Network Environment
2011/5/25
For the first time, OFDMA and SC-FDMA are compared experimentally as candidate uplink access techniques for next-generation PONs. Important issues like peak-to-average power ratio, optical beat interf...
Comparison of Pulse Shapes in a 224Gbit/s (28Gbaud) PDM-QAM16 Long-Haul Transmission Experiment
Fiber optics communications Phase modulation
2011/5/20
We investigate the effectiveness of RZ50 versus NRZ in a 224Gbit/s PDM-QAM16 transmission. Record distances of 2000km and 1520km are reported for single- and 3-channel transmission over SMF links with...
Comparison of Two CS-SSB Modulators Used in Bidirectional Carrier Distributed Long-Reach Passive Optical Network
Two CS-SSB Modulators Carrier Distributed Reach Passive Optical Network
2011/5/18
Two different CS-SSB modulators based on Mach-Zehnder structure used in carrier-distributed long-reach passive optical networks are investigated and compared. The Rayleigh-backscattering beat noise to...
Performance Comparison of 112 Gb/s PM-QPSK Transmission with NZ-DSF Dispersion Compensation Configurations for Lower Bit Rates
Dispersion Compensation Lower Bit Rates Performance Comparison
2011/5/14
We investigate transmission performance for 112 Gb/s PM-QPSK DWDM systems over NZ-DSF with configurations enabled by NZ-DSF dispersion characteristics. We find flexibility in dispersion compensation f...
Performance Comparison of MLSE-Based Receivers in a 1000 km Transmission Link under Fast SOP Variations
Fiber optics links subsystems Polarization
2010/6/10
This paper aims at comparing the tolerance to fast SOP variations of two MLSE-based receivers. Descriptions of the emulation device and measurement method are given. The results show that the receiver...
Fractional Survivable Network Bandwidth:A Comparison of IP over WDM Schemes
Network Survivability Network Protection Restoration
2010/6/10
IP over WDM network schemes are considered that protect a fraction b of the network bandwidth. If b is large then failure detection and fractional bandwidth protection at the optical layer lowers band...
Optimization and Comparison of the Transmission Performance of RSOA/SOA Intensity-Modulated Optical OFDM Signals for WDM-PONs
Fiber optics communications Modulation Semiconductor optical amplifiers
2010/6/4
For optical OFDM IMDD systems, optimum operating conditions of RSOA/SOA intensity modulators are identified, under which similar performances are obtained for different modulators. Under low-cost comp...
Comparison of Static and Dynamic WDM Networks in Terms of Energy Consumption
Fiber optics communications Networks
2010/6/4
The benefit of migrating from static to dynamic WDM networks is evaluated, for the first time, in terms of energy consumption. Results show a clear benefit of dynamic operation for traffic loads < 0.5...
Comparison of Current FPGA Technology:Case Study Implementing FEC for the 100G Optical Transport Network
Current FPGA Technology Optical Transport Network
2009/7/15
This case study examines two high performance FEC algorithms implemented in a single state of the art FPGA for the 100G optical network.
Characterisation and comparison of bitwise phase-control OTDM signals in 80 Gbit/s transmission
bitwise phase-control OTDM signals transmission
2008/8/3
The impact of varying the phase relationship between adjacent OTDM channels is reported for transmission at 80 Gbit/s. A new method to adjust the phase shift values is proposed.