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Variable Gate Width, All-Optical Sampling using Electroabsorption Modulator for Optical Performance Monitor
Nonlinear optical signal processing Semiconductor nonlinear optics including MQW Fiber optics communications
2015/5/25
Variable gate width, all-optical sampling using an electroabsorption modulator is pro- posed for a multi-bit rate, optical performance monitor. The discrepancy between waveform quality and bit error r...
Optical Processing for Performance Monitoring
Nonlinear optical signal processing Nonlinear optical devices
2015/5/25
We review recent experiments of waveform spectrum analysis by the nonlinear Kerr effect, and its application to multi-impairment monitoring of optical signals. The measurement of 640 Gb/s signals via ...
Performance prediction for WDM PM-QPSK transmission over uncompensated links
Coherent communications Nonlinear optics fibers
2015/5/21
We derive closed-form expressions depending on a single fitting parameter for performance prediction of WDM PM-QPSK long-haul uncompensated transmission. Besides general properties, we demonstrate tha...
Performance Investigation of Polarization-Multiplexed 16-QAM using All-Optical OFDM Transmission and Digital Coherent Detection
Performance Investigation Polarization-Multiplexed All-Optical OFDM Transmission Digital Coherent Detection
2015/5/20
We generated a 500-Gb/s AO-OFDM signal with DP-16QAM modulating each subcarrier and detected the signal using coherent detection. We investigated the effects of DSP oversampling and receiver bandwidth...
Linear and nonlinear impairment mitigation for enhanced transmission performance
Linear nonlinear impairment mitigation enhanced transmission performance
2015/5/20
We review the unique resistance of coherent systems to linear effects and the challenges to digitally mitigate nonlinearities. We also show how linear effects can sometimes turn out to be beneficial b...
100Gb/s dual-carrier DP-QPSK performance after WDM transmission including 50GHz Wavelength Selective Switches
100Gb/s dual-carrier DP-QPSK performance WDM transmission Wavelength Selective Switches
2015/5/18
Using a real-time intradyne receiver, we characterize the tolerance of a 100Gb/s dual-carrier dual-polarization-QPSK signal to carrier frequency separation and frequency offset after WDM transmission ...
A “Linear” High-Contrast Gratings Hollow-Core Waveguide and its System Level Performance
Gratings Nonlinear Systems Waveguides
2015/6/9
The high-contrast gratings assisted hollow-core waveguide demonstrates an ultra-low nonlinearity (<6×10 -13 /W/m). Digital and analog system-level simulations further show that the waveguide does not...
Design and Performance Evaluation of Wavelength-Constrained Optical Time-Slotted Networks
Networks network optimization wavelength assignment
2015/6/9
We propose to design a wavelength-constrained Time-Wavelength-Interleaved Network(TWIN) that uses a non-reconfigurable core, and compare its performance to that of a Time-Wavelength-Switched Network (...
Optical Carrier Suppression and Balanced Coherent Heterodyne Detection for Improved Performance in Wide-band Microwave Photonic Links
Optical Carrier Suppression Balanced Coherent Heterodyne Detection Improved Performance Wide-band Microwave Photonic Links
2015/6/8
We demonstrate a wide-band microwave photonic link with high gain and dynamic range, low noise figure, and dispersion-free propagation using double sideband suppressed carrier modulation, optical ampl...
Influence of Rayleigh Backscattering on the Performance of NOLM-Based Phase-Preserving Amplitude Limiters
Nonlinear optics fibers Phase modulation
2015/6/5
Design and fiber optimization in NOLM-type regenerators allow for a substantial decrease in excess noise originating from Rayleigh backscattering. Cascaded operation of up to 20 phase-preserving limit...
Impacts of Waveband Capacity and Waveband Add/Drop Ratio on the Performance of ROADM-Ring Connecting Hierarchical Optical Path Cross-Connects
Networks assignment routing algorithms Networks ring
2015/6/5
We analyze the performance of a multiple-ROADM-ring connected network that utilizes Hierarchical Optical Cross-Connects (HOXC). We clarify the impacts of the waveband capacity and waveband add/drop ra...
Impact of Crosstalk in Capacity performance of WDM/OCDMA System
Fiber optics communications Networks
2015/6/4
The capacity of WDM/OCDMA system is analyzed under time-wavelength domain crosstalk to determine the simultaneous capacity threshold. The system’s crosstalk, channel spacing and datarate are optimized...
Ultra High Performance Media Multicasting Scheme over Wavelength-Routed Networks
Networks multicast Fiber Optics Communications
2015/6/4
This paper presents a demonstration of an all-optical multicasting scheme for ultra high definition media over wavelength-routed networks, using Self-Phase Modulation. The feasibility of using this te...
Performance Assessment of Flexible Time-Wavelength Routing for a Self-aggregating Transparent Metro-Access Interface
Flexible Time-Wavelength Metro-Access Interface
2015/7/20
A time-WDM architecture with on-the-fly wavelength routing and traffic self-aggregation is proposed.Metro-accesss ligthpaths are established using ONUs with reflective modulators. Simulations results ...
Improvement of Wavelength Switch Performance Consisting of a SSG- DBR-LD and a SOA-DISC with BPF Detuning
Wavelength Switch Performance SSG- DBR-LD SOA-DISC BPF Detuning
2015/7/17
We demonstrate dynamic wavelength switch operation using a SSG-DBR-LD and a SOA-DISC-type wavelength converter. Error free performance was achieved with precise adjustment of signal wavelength to peri...