Dispersion compensation plays a key role in generation, amplification and propagation of femetosecond pulses. In the dispersive medium, the pulse can be broaden or compressed depending on the sign of chirp and dispersion. To obtain the ultrashort pulses, the pulse group delay (GD) should have about frequency independence after the dispersion compensation. Especially to compress a pulse to near ...

For the first time long broadband chirped fiber Bragg gratings with a dispersion profile designed to compensate 3rd order-dispersion are presented. These results demonstrate how the increased demands for dispersion compensation at very high bit-rates can be met using chirped fiber Bragg gratings. LONG CONTINUOUSLY CHIRPED FIBER BRAGG GRATINGS FOR COMPENSATION OF LINEAR AND 3rd ORDER DISPERSION ...

The compensation effects of number of fiber spans and the residual dispersion per span (RDPS) in the combining of dispersion management (DM) and the midway optical phase conjugation on the optical transmission link consisted of the long fiber spans with 94 km of SMF length and -160 ps/nm/km of the dispersion-compensating fiber’s dispersion coefficient for 24 channels x 40 Gbps wavelength divisi...

We demonstrate the theoretical and experimental results of using a single prism in the rapid-scanning optical delay line of an optical coherence tomography (OCT) system for compensating the mismatches of the firstand second-order group delay dispersion (GDD) between the reference and sample arms. The analytical expressions for the firstand second-order GDD are derived based on the typically des...

This paper investigates the optimum dispersion mapping for 40Gbps WDM system. The paper shows the performance of five channel WDM system with the channel spacing of 100GHz (0.8nm) by using non-zero dispersion shifted fiber (NZDSF) and dispersion compensation fiber (DCF). In addition it reveals both pre-compensation and residual dispersion per span can develop the performance. The modulation for...

We address numerical dispersion compensation based on the use of the fractional Fourier transform (FrFT). The FrFT provides a new fundamental perspective on the nature and role of group-velocity dispersion in Fourier domain OCT. The dispersion induced by a 26 mm long water cell was compensated for a spectral bandwidth of 110 nm, allowing the theoretical axial resolution in air of 3.6 μm to be r...

In this paper, simple modifications to the pseudospectral time-domain (PSTD) algorithm that offer dispersion compensation are presented. In a homogeneous lossless medium, the compensation offers an exact solution for one-dimensional (1D) propagation. For 2D and 3D propagation, the proposed method can compensate dispersion for a central frequency in any direction. The techniques are then extende...

We analyze in details a simplified configuration of a compensation method based on a negative nonlinearity. It is shown that one can cascade the compensation of dispersive and self-phase modulation effects accumulated along a communication line without serious degradation in the quality of the transmitted signal. Anomalous and normal dispersion regimes are compared. Amplifier noise and higher-o...

494 ISSN: 2278 – 909X All Rights Reserved © 2015 IJARECE  Abstract— Various factors like chromatic dispersion, polarization mode dispersion, non-linear effects, second order and third order dispersion impose limit on the performance of all the optical networks. In this paper, WDM optical system at 40 Gb/s has been investigated for the three dispersion compensation techniques (pre, post and sym...

This paper reports different strategies for electrical dispersion compensation of optical single sideband transmission systems. We investigate and compare the mitigation of the chromatic dispersion impairment using dispersive microstrip lines, Butterworth filters, and hybrid schemes employing an adaptive filter. Simulation results are presented at 10 Gbit/s, proving transmission over 600km of d...