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Narrow Filtered DPSK:an Attractive Solution for Hybrid Systems
Filtered DPSK Hybrid Systems
2015/8/4
We propose an efficient Hybrid system based on 40G DQPSK and 10G narrow filter DPSK in place of OOK. This technique reduces XPM on DQPSK channels at low inline dispersion.
Fiber Nonlinearity Mitigation by PAPR Reduction in Coherent Optical OFDM Systems via Active Constellation Extension
Fiber Nonlinearity PAPR Optical OFDM Systems Active Constellation Extension
2015/8/4
We consider Active Constellation Extension to reduce the PAPR in CO-OFDM systems. We find that the nonlinearity threshold is improved by 1.5 dB at a reach of 400 km SSMF fiber.
Impact of Fibre Nonlinearities in Electronic Dispersion Compensation Systems at 40 Gb/s
Impact of Fibre Nonlinearities Electronic Dispersion Compensation Systems
2015/8/4
The impact of intrachannel nonlinearities in 40 Gb/s systems using electronic dispersion precompensation is studied. We found no significant reduction of the nonlinear threshold compared to optical in...
Improving Nonlinear Precompensation in Direct-Detection Optical OFDM Communications Systems
Nonlinear Precompensation Direct-Detection Optical OFDM Communications Systems
2015/8/4
Carrier boosting at the receiver enables direct detection optical OFDM (DDO-OFDM) to outperform coherent OOFDM in the nonlinear limit. Boosting also improves the effectiveness of nonlinearity precompe...
Practical design rules for ultra high-speed Dense Dispersion Management Telecommunication systems
ultra high-speed Dense Dispersion Management Telecommunication systems
2015/8/4
In this work, we establish and analyze some practical design rules for the implementation of ultra-high speed(>160-Gbit/s) telecommunication systems based on dense dispersion management.
PMD Monitoring in Traffic-carrying Optical Systems
PMD Monitoring Traffic-carrying Optical Systems
2015/8/3
DGD was monitored in in-service terrestrial optical fiber systems for the first time without the requirement of looping-back. The relationship between the measured DGD and the actual fiber PMD paramet...
A statistical assessment of the nonlinear cross-polarization modulation is presented. The resulting distribution of the states of polarization is derived while accounting for various properties of the...
Scalable GE-PON over OCDMA without sacrifice of upstream bandwidth:Principle and Its Experimental Demonstration of 2xGE-PON Systems over 2x63-chip Code
GE-PON OCDMA upstream bandwidth Principle Experimental Demonstration Systems over
2015/8/3
We propose a scalable GE-PON over OCDMA system without sacrificing upstream bandwidth and experimentally demonstrate burst-data transmission of 2xGE-PON systems over 2xCodes using 10 Gbit/s-capable 63...
Revisiting Binary Sequence Length Requirements for the Accurate Emulation of Highly Dispersive Transmission Systems
Sequence Length Accurate Emulation Highly Dispersive Transmission Systems
2015/7/31
For accurate emulation, pseudo-random sequence lengths need not exceed requirements of Monte-Carlo theory, scaling like the inverse of the expected bit error rate, even with strong inter-symbol correl...
A Stratified Sampling Monte Carlo Algorithm for Efficient BER measurement and its Application to DQPSK Terrestrial Systems
Monte Carlo Algorithm Efficient BER measurement DQPSK Terrestrial Systems
2015/7/31
We propose an efficient stratified sampling algorithm for BER estimation and apply it to FEC-coded DQPSK systems. We measured computational savings up to 70% compared with standard Monte Carlo.
OFDM Radio-over-Fibre Systems Employing Routing in Multi-Mode Fibre In-building Networks
OFDM Radio-over-Fibre Systems Employing Routing Fibre In-building Networks
2015/7/31
We report a radio-over-fibre system for all-optical routing OFDM signal at 18.3 GHz over 950 m multi-mode fibre, with error vector magnitude penalty < 3%.
Highly Linear Radio-over-Fiber Transmitter for Subcarrier Multiplexed Systems
Linear Radio-over-Fiber Transmitter Subcarrier Multiplexed Systems
2015/7/31
A highly linear RoF transmitter, employing a dual Mach-Zehnder modulator, is proposed and experimentally tested. Carrier to interference ratio improvement of 16dB, compared to conventional external mo...
Followed by related development activities in Japan, a comprehensive investigation on energy consumption in ITC industry is presented. Photonic network will have more important roles in mobile network...
Generation of 10-GHz 2-ps optical pulse train over the C band based on an optical comb generator and its application to 160-Gbit/s OTDM systems
optical pulse train over optical comb generator application OTDM systems
2015/7/31
We demonstrate stable generation of a 10-GHz 2-ps optical pulse train from 1530 to 1555 nm based on an optical comb generator. Such pulse train is multiplexable to 160 Gbit/s.
Performance Improvement Using a Novel MAP Detector in Coherent WDM Systems
Performance Improvement Novel MAP Detector Coherent WDM Systems
2015/7/31
We propose a novel maximum a posteriori probability (MAP) detector in coherent WDM systems, which exhibits significant improvement in back-to-back receiver sensitivity, chromatic dispersion and phase ...