Dark spatial soliton and quasi-soliton by arbitrary initial beam profiles in negative Kerr local and nonlocal medium

Optik ◽  
2020 ◽  
Vol 207 ◽  
pp. 163892 ◽  
Author(s):  
Majid Hesami ◽  
Mahrokh Avazpour ◽  
Méndez Otero ◽  
M.D. Iturbe Castillo
Keyword(s):  
Spatial Soliton ◽  
Initial Beam ◽  
Nonlocal Medium

OPTICAL SPATIAL SOLITON IN STRONG NONLOCAL LOGARITHMIC MEDIUM

2013 ◽  
Vol 22 (03) ◽  
pp. 1350026
Author(s):  
QING WANG ◽  
JINGZHEN LI ◽  
XINGHUA WANG
Keyword(s):  
Gaussian Beam ◽  
Evolution Equations ◽  
Beam Width ◽  
Optical Soliton ◽  
Spatial Soliton ◽  
Kerr Medium ◽  
Initial Condition ◽  
Initial Beam ◽  
Spatial Optical Soliton ◽  
The Difference

In this paper, the propagation of Gaussian beam in strong nonlocal logarithmic medium is studied, and the evolution equations for the parameters are obtained. The initial condition of forming spatial optical soliton in this kind of medium, which requires the initial beam on-waist incident and its width equaling to the critical beam width, is different from that in strong nonlocal Kerr medium. The reason of the difference is also analyzed. Moreover, the result shows that the beam width will oscillate periodically when the initial condition is dissatisfied. In addition, we discuss the influence of the initial beam width on oscillating range.

scholarly journals Evolution of rectangular and triangular initial beam profiles in positive Kerr local medium

2020 ◽  
Vol 1 (1) ◽  
pp. 13-17
Author(s):  
M. Hesami ◽  
M. Avazpour ◽  
M. M. Méndez Otero ◽  
J. Jesús Arriaga Rodríguez
Keyword(s):  
Initial Step ◽  
Beam Profile ◽  
Spatial Soliton ◽  
Kerr Medium ◽  
Third Order ◽  
Focusing Effect ◽  
Initial Beam ◽  
Self Focusing ◽  
Matlab Program ◽  
Local Medium

The hyperbolic secant (Sech) shape, as the initial beam profile, is the well-know profile that compensates the diffraction and self-focusing effect during propagation in Kerr medium, and evolves as the bright spatial soliton. The Sech beam can be confined in the Kerr medium andinduces its own waveguide. In this work, two initial beam profiles, rectangular and triangular functions, that are different than Sech profile, are considered, and the propagation of these beam profiles in third-order nonlinear (Kerr) medium is investigated. As a result, the initialbeam-width played an important role in confining the beam profiles in direction of propagation. In addition, the intensity profiles change to the Sech profile after some initial step of propagation. All the calculations and simulations have been done by the Split-Step numericalmethod with MATLAB program.

Incoherently coupled spatial soliton families in photorefractive polymers

2011 ◽  
Vol 49 (4) ◽  
pp. 526-529 ◽  
Author(s):  
Yanli Su ◽  
Qichang Jiang ◽  
Xuanmang Ji ◽  
Jinlai Wang
Keyword(s):  
Spatial Soliton ◽  
Photorefractive Polymers

Coherently coupled screening spatial soliton pairs due to the two-photon photorefractive effect

2017 ◽  
Vol 56 (7) ◽  
pp. 076102
Author(s):  
Qiang Wang ◽  
Li-li Hao ◽  
Hong-xia Tang ◽  
Hai-wei Mu ◽  
Chun-feng Hou
Keyword(s):  
Photorefractive Effect ◽  
Spatial Soliton ◽  
Two Photon

The effects of temperature on the stability and evolution of separate photovoltaic bright–dark spatial soliton pair

2007 ◽  
Vol 54 (4) ◽  
pp. 579-587
Author(s):  
Guangyong Zhang ◽  
Jinsong Liu ◽  
Cheng Wang ◽  
Huilan Zhang ◽  
Shixiong Liu
Keyword(s):  
Spatial Soliton ◽  
Effects Of Temperature ◽  
The Stability ◽  
Soliton Pair
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