搜索结果: 1-15 共查到“光学工程 XPM”相关记录15条 . 查询时间(0.148 秒)
Polarization-insensitive wavelength conversion, as well as the conversion of return-to-zero (RZ) ON-OFF keying (RZ-OOK) to RZ binary phase-shift keying (RZ-BPSK), has been simultaneously achieved at 4...
Multi-stage Carrier Phase Recovery and Nonlinear Polarization Crosstalk Canceller for XPM Mitigation
Coherent communications Nonlinear optics fibers
2011/5/26
Novel XPM mitigation technique by coordination of carrier phase recovery and nonlinear polarization crosstalk canceller is proposed. It doubles the Q improvement over conventional method in 112Gb/s DP...
Experimental Demonstration of XPM Compensation for CO-OFDM Systems with Periodic Dispersion Maps
Fiber optics communications Modulation Nonlinear Optics fibers.
2011/5/26
We experimentally demonstrate compensation of XPM for CO-OFDM systems operating in a periodic dispersion map using a low-bandwidth compensator. The nonlinear threshold was increased by 4 dB in a 22.5 ...
XPM-Induced Spectral Distortion in High Efficiency,Picosecond,Fiber Optical Parametric Oscillators
XPM-Induced Spectral Distortion High Efficiency Fiber Optical Parametric Oscillators
2011/5/15
We describe a 230nm tunable fiber optical parametric oscillator (FOPO) using an 8ps pump laser. The FOPO generates 2-4ps pulses with conversion efficiency as high as 20%. The output spectrum exhibits ...
PDM-OFDM for upgrade scenarios:An investigation of OFDM-induced XPM on 42.8-Gb/s DPSK over SSMF and LEAF
Optical communications Nonlinear optics fibers
2010/6/9
We investigate the nonlinear tolerance of 42.8-Gb/s DPSK with PDM-OFDM neighbors. It is found that the XPM penalty scales with the OFDM-bandwidth and that for data rates up to 40-Gb/s delta powers are...
Compensating XPM for 100 Gbit/s coherent channels with 10 Gbit/s direct-detection NRZ neighbors
Fiber optics communications Modulation
2010/6/9
We propose a simple optoelectronic method to compensate for cross-phase modulation in long-haul systems. Simulations show >1.3 dB improvement in Q for 1200-km 40 and 100-Gbit/s CO-QPSK and CO-OFDM cha...
Volterra Nonlinear Compensation of 100G Coherent OFDM with Baud-rate ADC, Tolerable Complexity and Low Intra-channel FWM/XPM Error Propagation
Coherent Communications Fiber Optic Communications
2010/6/9
Nonlinear tolerance of PDM-OFDM transmission with in-line dispersion compensation, e.g. legacy ultra-long-haul submarine links, is substantially improved by a Volterra non-linear compensation scheme, ...
Reduction of XPM penalty by sub-bit delay demodulation of DQPSK
Phase modulation Fiber optics communications
2010/6/8
We show that using a shortened delay in the demodulator for DQPSK channels can significantly reduce the XPM penalties caused by transmitting 40Gb/s DQPSK channels alongside 10Gb/s OOK channels.
40 Gb/s XPM Based All-Optical Retiming Using Filtered Clock Signals From A Quantum-Dash Fabry-Perot Laser
Fiber optic communications Nonlinear optics fibers All-optical devices
2010/6/8
The implications of the number of laser modes in the spectrum of a filtered clock signal on XPM based retiming is investigated in terms of SBS suppression, spectral broadening and timing jitter.
Suppression of XPM Penalty in Dispersion Managed Hybrid 10G/40G/100G DWDM Networks Using Group Delay Management
XPM Penalty Dispersion Managed Hybrid DWDM Networks Group Delay Management
2009/7/17
We propose a novel group delay management technique which effectively suppresses XPM accumulation in hybrid 10G/40G/100G DWDM networks. Systematic investigation reveals its high effectiveness for vari...
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...
All-Optical Wavelength Conversion at 160Gb/s by Intersubband Transition Switches Utilizing Efficient XPM in InGaAs/AlAsSb Coupled Double Quantum Well
Wavelength Conversion Coupled Double Quantum Well
2009/7/14
We report all-optical wavelength conversion of 160-Gb/s signal by intersubband transition switches with signal pulse energy as low as sub-pJ, which is enabled by newly designed InGaAs/AlGaAs/AlAsSb co...
All-Optical TDM to WDM Signal Conversion and Partial Regeneration Using XPM with Triangular Pulses
All-Optical TDM WDM Signal Conversion XPM Triangular Pulses
2008/8/3
We propose a new all-optical, all-fibre scheme for conversion of time-division multiplexed to wavelength-division multiplexed signals using cross-phase modulation with triangular pulses. Partial signa...
Symbol Rate Dependency of XPM-induced Phase Noise Penalty on QPSK-based Modulation Formats
Symbol Rate Dependency XPM-induced Phase QPSK-based Modulation
2008/7/31
Systematic investigation of XPM impact on QPSK signals reveals that higher symbol rates are advantageous for reducing both intra-span generation and multi-span accumulation of phase noise.
Joint-Polarization Carrier Phase Estimation for XPM-Limited Coherent Polarization-Multiplexed QPSK transmission with OOK-neighbors
Carrier Phase Estimation XPM-Limited Coherent Polarization-Multiplexed QPSK transmission OOK-neighbors
2008/7/30
We demonstrate joint polarization carrier phase estimation for XPM-limited channels with significant improvements over standard methods, demonstrated on measurements of 43Gb/s NRZ-CP-QPSK with 10.7Gb/...