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Bifurcations in a Mathieu equation with cubic nonlinearities:Part II
Mathieu equation Bifurcations Averaging
2015/8/27
We found that a degenerate bifurcation point occurs in the resulting slow flow and some of the bifurcations near this point were looked at. In this work we present additional results concerning the bi...
Optimized Pulse Shaping for Intra-channel Nonlinearities Mitigation in a 10 Gbaud Dual-Polarization 16-QAM System
Fiber optics communications Modulation
2015/5/26
An optimized pulse shape is shown to reduce intra-channel nonlinear effects in a 10 Gbaud dual-polarization 16-QAM EDFA-amplified system without optical dispersion compensation.
Nonlinearities in Silicon Optical Fibers
Fiber characterization Fiber materials Nonlinear optics fibers
2015/5/22
The nonlinear propagation characteristics in a hydrogenated amorphous silicon core optical fiber are investigated to demonstrate ultra-fast all-optical switching by cross-absorption modulation.
Mitigation of Nonlinearities in Optical Transmission Systems
Mitigation Nonlinearities Optical Transmission Systems
2015/5/21
Nonlinear compensation with digital back-propagation can improve Q-factor by more than 1dB, proven by experiments. Simplification of propagation model is the key to suppress circuit size, whereas stra...
Topology Optimization of Compliant Mechanisms with Geometrical Nonlinearities Using the Ground Structure Approach
compliant mechanisms topology optimization geometrical nonlinearities
2011/8/4
The majority of topology optimization of compliant mechanisms uses linear finite element models to find the structure responses. Because the displacements of compliant mechanisms are intrinsically lar...
Application of Exp/imp finite difference for nonlinear heat transfer fin effect of nonlinearities of fin efficiency
nonlinear heat fin implicit scheme
2010/9/27
This paper deals with the transient analysis of a general nonlinear fin subjected to nonlinear boundary conditions. It aims at finding a simple way for the solution of this relatively complicated prob...
Interchannel Nonlinearities in Polarization-Multiplexed Transmission
Interchannel Nonlinearities Polarization-Multiplexed Transmission
2015/7/20
We examine the impact of cross-polarization modulation and cross-phase modulation in polarization-multiplexed systems by means of computer simulations and show how symbol-interleaving reduces the XPol...
Reducing the Impact of Intrachannel Nonlinearities By Pulse-Width Optimisation in Multi-level Phase-Shift-Keyed Transmission
Intrachannel Nonlinearities Pulse-Width Optimisation Multi-level Phase-Shift-Keyed Transmission
2015/7/20
We investigate the reduction in the duty-cycle for M-phase-shift-keyed transmission, demonstrating performance improvement in the range of 2-8 dB in nonlinear threshold (NLT) due to intrachannel-four ...
Experimental Demonstration of Nonlinear Electrical Equalizer to Mitigate Intra-channel Nonlinearities in Coherent QPSK Systems
Nonlinear Electrical Equalizer Mitigate Intra-channel Nonlinearities Coherent QPSK Systems
2015/7/20
We experimentally demonstrate the mitigation of intra-channel nonlinearities in 10GBaud coherent quadrature phase shift keying systems via nonlinear electrical equalizer based on Volterra theory. The ...
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
2015/7/17
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...
Scaling of Nonlinear Threshold in WDM Transmission Systems using Electronic Precompensation of Intrachannel Nonlinearities
Nonlinear Threshold WDM Transmission Systems Electronic Precompensation Intrachannel Nonlinearities
2015/7/17
A simple criterion is presented which describes the impact of interchannel nonlinearities in wavelength-division multiplexing systems with electronic precompensation of intrachannel nonlinearities. Fu...
Femtosecond Cascaded Second-Order Nonlinearities in Quasi-Phase-Matching Devices
Frequency conversions Cascaded second-order nonlinearities Optical solitons
2009/6/8
Cascaded processes of energy exchanges between optical beams via second-order nonlinearities lead to various phenomena, including Kerr-like nonlinear phase shifts and optical solitons. The cascading n...
All-optical 160Gb/s half-addition half-subtraction and AND/OR function exploiting pump depletion and nonlinearities in a PPLN waveguide
pump depletion nonlinearities PPLN waveguide
2015/8/6
We demonstrate simultaneous all-optical half-adder, half-subtracter and AND/OR-functions at 160Gbit/s. The various functions are produced in a PPLN waveguide through pump depletion as well as sum and ...
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...