scholarly journals Investigation of the impact of SBS-parameters and loss modulation on the mode locking of an SBS-laser oscillator

2007 ◽  
Vol 25 (1) ◽  
pp. 107-116 ◽  
Author(s):  
PHILIP KAPPE ◽  
ALEXANDER STRÄßER ◽  
MARTIN OSTERMEYER
Keyword(s):  
Brillouin Scattering ◽  
Longitudinal Mode ◽  
Mode Locking ◽  
Equation Model ◽  
Optical Modulator ◽  
Round Trip ◽  
Laser Oscillator ◽  
Parameter Variations ◽  
Stimulated Brillouin ◽  
The Impact

A Nd:YAG laser oscillator Q-switched and mode locked via a nonlinear mirror based on stimulated Brillouin scattering (SBS) and aided by an acousto optical modulator (AOM) has been realised. A rate equation model and a round trip model are used to describe the longitudinal mode dynamics. Parameter variations of the nonlinear SBS mirror and the loss modulating AOM in the resonator are investigated with regard to their effect on the pulse duration and spectra of the pulses.

scholarly journals Effect of the axial magnetic field on coexisting stimulated Raman and Brillouin scattering of a circularly polarized beam

2016 ◽  
Vol 35 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Ashish Vyas ◽  
Swati Sharma ◽  
Ram Kishor Singh ◽  
R.P. Sharma
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Brillouin Scattering ◽  
Wave Interaction ◽  
Scattering Process ◽  
Circularly Polarized ◽  
Polarized Beam ◽  
Stimulated Brillouin ◽  
The Impact ◽  
Stimulated Raman

AbstractThis paper presents a model to study the two prominent coexisting instabilities, stimulated Raman (SRS), and stimulated Brillouin scattering (SBS) in the presence of background axial magnetic field. In the context of laser-produced plasmas, this model is very useful in the situations where a self-generated axial magnetic field is present as well as where an external axial magnetic field is applied. Due to the interplay between both the scattering processes, the behavior of one scattering process is greatly modified in the presence of another coexisting scattering process. The impact of this coexisting phenomenon and axial magnetic field on the back reflectivity of scattered beams has been explored. It has been demonstrated that the back reflectivity gets modified significantly due to the coexistence of both the scattering processes (SRS and SBS) as well as due to the axial magnetic field. Results are also compared with the three-wave interaction case (isolated SRS or SBS case).

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