Experimental study on stimulated Brillouin amplification with pump depletion

2002 ◽  
Author(s):  
Yingchun Ding ◽  
Shulian Zhang ◽  
Zhiwei Lu ◽  
Weiming He
Keyword(s):  
Experimental Study ◽  
Stimulated Brillouin ◽  
Pump Depletion

Numerical Stability Analysis of Solutions of PDEs

2004 ◽  
Vol 4 (1) ◽  
pp. 23-33
Author(s):  
Raimondas Čiegis ◽  
Remigijus Čiegis
Keyword(s):  
Iterative Algorithm ◽  
Mass Conservation ◽  
Stationary Problem ◽  
Discrete Problem ◽  
Splitting Scheme ◽  
Stable Algorithm ◽  
Conservation Property ◽  
Numerical Stability Analysis ◽  
Stimulated Brillouin ◽  
Pump Depletion

Abstract In this paper we investigate two iterative methods for solving one problem of nonlinear optics. The main goal is not only to find a stationary solution but also to investigate its stability. It is shown that both methods have very different stability properties and the less stable algorithm is close to the approximation of the physically important non-stationary problem. We also propose a new iterative algorithm for solving a more complicated problem which describes the optical conjugation in stimulated Brillouin backscattering with pump depletion. This algorithm is based on a symmetrical splitting scheme and the nonlinear interaction is approximated by using the special mass conservation property of the discrete problem. Thus, we obtain a conservative iterative algorithm. The results of the numerical experiments are presented and they confirm our theoretical conclusions.

scholarly journals Study of coexisting stimulated Raman and Brillouin scattering at relativistic laser power

2014 ◽  
Vol 32 (4) ◽  
pp. 657-663 ◽  
Author(s):  
Ashish Vyas ◽  
Ram Kishor Singh ◽  
R.P. Sharma
Keyword(s):  
Refractive Index ◽  
Laser Power ◽  
Stimulated Raman Scattering ◽  
Brillouin Scattering ◽  
Relativistic Mass ◽  
Self Focusing ◽  
Mass Correction ◽  
Stimulated Brillouin ◽  
Pump Depletion ◽  
Stimulated Raman

AbstractThis paper presents a model to study the stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) simultaneously at relativistic laser power. At high intensity, the relativistic mass correction for the plasma electrons becomes significant and the plasma refractive index gets modified which leads to the relativistic self-focusing of the pump beam. This filamentation process affects the scattering processes (SRS and SBS) and at the same time the pump filamentation process also gets modified in the presence of the coexisting SRS and SBS due to the pump depletion. We have also demonstrated that the pump depletion and relativistic filamentation affects the back-reflectivity of scattered beams (SRS and SBS) significantly, for the coexistence case.

Theoretical and Experimental Study of Power Dependence of Stimulated Brillouin Scattering Phase Shift

2016 ◽  
Vol 36 (9) ◽  
pp. 0906001
Author(s):  
李永倩 Li Yongqian ◽  
安琪 An Qi ◽  
何玉钧 He Yujun ◽  
胡智奇 Hu Zhiqi
Keyword(s):  
Experimental Study ◽  
Phase Shift ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Power Dependence ◽  
Scattering Phase ◽  
Stimulated Brillouin
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