Soliton interaction with third-order dispersion near zero-dispersion wavelength

2012 ◽  
Vol 4 (1/2) ◽  
pp. 76
Author(s):  
Dowluru Ravi Kumar ◽  
Bhima Prabhakara Rao
Keyword(s):  
Soliton Interaction ◽  
Third Order ◽  
Third Order Dispersion ◽  
Dispersion Wavelength ◽  
Zero Dispersion Wavelength ◽  
Order Dispersion

STUDY OF PULSE EVOLUTION AND OPTICAL BISTABILITY UNDER THE INFLUENCE OF CUBIC-QUINTIC NONLINEARITY AND THIRD ORDER DISPERSION

2007 ◽  
Vol 16 (01) ◽  
pp. 119-135 ◽  
Author(s):  
SAMUDRA ROY ◽  
SHYAMAL BHADRA
Keyword(s):  
Optical Bistability ◽  
Beam Propagation Method ◽  
Simulated Data ◽  
Propagation Distance ◽  
Quintic Nonlinearity ◽  
Third Order Dispersion ◽  
Proposed Model ◽  
Dispersion Wavelength ◽  
Zero Dispersion Wavelength ◽  
Order Dispersion

Using the variational method, we examine the evolution of different parameters to characterize an optical pulse propagating in a non-Kerr type medium having cubic-quintic nonlinearity in the vicinity of zero dispersion wavelength. The validity of the derived results is tested by applying different ansatz functions over a critical propagation distance. Furthermore, the results are compared with numerically simulated data generated through the Split Step Fourier beam propagation method, solving the dynamic nonlinear cubic-quintic Schrödinger equation (NLCQSE). Subsequently, the effect of higher order dispersion on optical bistability under cubic-quintic nonlinearity is studied in the framework of our proposed model.

Role of positive and negative third order dispersion (TOD) on soliton interaction in 160Gbps telecommunication system

2015 ◽  
Vol 24 (04) ◽  
pp. 1550044 ◽  
Author(s):  
Bhupeshwaran Mani ◽  
Jawahar ◽  
K. Chitra ◽  
A. Sivasubramanian
Keyword(s):  
Single Channel ◽  
Massive Particle ◽  
Initial Position ◽  
Soliton Interaction ◽  
Q Value ◽  
Telecommunication System ◽  
Interaction Point ◽  
Third Order ◽  
Third Order Dispersion ◽  
Order Dispersion

In this paper, we analyze the influence of positive and negative third order dispersion (TOD) on soliton interaction. The peculiar nature of soliton as massive particle results in interaction of in-phase soliton, which has resulted in perfect collision in 160[Formula: see text]Gbps system at the interaction point, [Formula: see text][Formula: see text]Km within one collision period of [Formula: see text][Formula: see text]Km. The TOD normally helps in soliton shift from its initial position. We demonstrate how this shifting of TOD helps in preventing the interaction at 2202.6[Formula: see text]Km with an initial relative spacing and pulse width of in-phase soliton [Formula: see text] and 1.77[Formula: see text]ps, respectively. As the TOD has its influence near zero dispersion point of fiber, we choose the dispersion parameter of fiber as [Formula: see text][Formula: see text]ps2/Km. On considering the positive and negative TOD, the interaction was prevented at [Formula: see text], which is characterized in terms of Q-value in a single channel telecommunication system. It is seen that for positive TOD with the values of [Formula: see text] and 0.07[Formula: see text]ps3/Km, the system yielded the Q-value of 88.33 and 54.81, respectively, while for negative TOD with the values of [Formula: see text] and [Formula: see text][Formula: see text]ps3/Km, the Q was 84.47 and 38.25, respectively.

Study on fundamental and higher order soliton with and without third-order dispersion near zero dispersion point of single mode fiber

2014 ◽  
Vol 23 (03) ◽  
pp. 1450028 ◽  
Author(s):  
Bhupeshwaran Mani ◽  
K. Chitra ◽  
A. Sivasubramanian
Keyword(s):  
Spectral Characteristics ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Higher Order ◽  
Original Position ◽  
Third Order ◽  
Third Order Dispersion ◽  
Dispersion Wavelength ◽  
Adjacent Position ◽  
Order Dispersion

In this work, we study the effect of fundamental and higher order soliton with and without the presence of third-order dispersion (TOD, β3). The effect is studied near the zero dispersion wavelength of 1270 nm with second-order dispersion (β2) value of 0.22 ps2/km for various third-order dispersion parameter sweeps from 0.01 to 0.1 ps3/km. The theme of temporal pulse displacement due to TOD is studied for 10 and 20 soliton periods for fundamental soliton and 10 soliton period for higher order soliton (N = 2). The effective pulse width of 1 ps (FWHM) is displaced from its original position to adjacent position depending upon the TOD value. It is found in both fundamental and higher order soliton, that the displacement in higher for TOD value of 0.1 ps3/km than 0.01 ps3/km. The effect of displaced fundamental soliton pulse is pictured with respect to the transmitted distance (different soliton period) and TOD. The spectral characteristics of higher order soliton is also analyzed which is one of the characteristic mechanisms for supercontinuum generation.

Highly negative dispersion compensating fiber with low third order dispersion

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Md. Ibadul Islam ◽  
Md Saiful Islam
Keyword(s):  
Group Velocity Dispersion ◽  
Chromatic Dispersion ◽  
Third Order ◽  
Crystal Fiber ◽  
Negative Dispersion ◽  
Third Order Dispersion ◽  
Sensing Applications ◽  
Effective Mode Area ◽  
Mode Area ◽  
Order Dispersion

AbstractIn this work, a dispersion compensating photonic crystal fiber (DC-PCF) is proposed in which dispersion, dispersion slope, second order dispersion, third order dispersion, nonlinearity, effective mode area, V parameter are investigated. The suggested structure is very effective for compensating of chromatic dispersion about −951 to −3075.10 ps/(nm.km) over 1340–1640 nm wavelength bandwidth. With perfectly matched layer boundary condition, guiding properties are inspected applying finite element method (FEM). The investigated results conform the opportunity of large negative dispersion and high group velocity dispersion (GVD) of −2367.10 ps/(nm.km) and 3018.55 ps2/km respectively, at 1550 nm operating wavelength. The offered fiber also shows low third order dispersion about −637.88 ps3/km, high nonlinearity of 91.11 W−1 km−1. From overall simulation results, it can be expected that the suggested PCF will be an effective candidate in high bit rate long haul optical communication system as well as sensing applications.

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