Brillouin scattering in planar waveguides. I. Numerical model

2003 ◽  
Vol 94 (8) ◽  
pp. 4876 ◽  
Author(s):  
A. Chiasera ◽  
M. Montagna ◽  
F. Rossi ◽  
M. Ferrari
Keyword(s):  
Numerical Model ◽  
Brillouin Scattering ◽  
Planar Waveguides

scholarly journals Brillouin scattering in planar waveguides. II. Experiments

2003 ◽  
Vol 94 (8) ◽  
pp. 4882 ◽  
Author(s):  
A. Chiasera ◽  
M. Montagna ◽  
E. Moser ◽  
F. Rossi ◽  
C. Tosello ◽  
...  
Keyword(s):  
Brillouin Scattering ◽  
Planar Waveguides

scholarly journals Numerical model for enhancing stimulated Brillouin scattering in optical microfibers

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 521
Author(s):  
Soon Heng Yeap ◽  
Siamak Dawazdah Emami ◽  
Hairul Azhar Abdul-Rashid
Keyword(s):  
Numerical Model ◽  
Optical Fiber ◽  
Frequency Shift ◽  
Slow Light ◽  
Brillouin Scattering ◽  
Optical Power ◽  
Stimulated Brillouin Scattering ◽  
Horizontal Shear ◽  
Shift Frequency ◽  
Stimulated Brillouin

Stimulated Brillouin scattering (SBS) is useful, among others for generating slow light, sensing and amplification. SBS was previously viewed as a poor method due to the limitation on optical power in high-powered photonic applications. However, considering the many possible applications using SBS, it is now of interest to enhance SBS in areas of Brillouin frequency shift together with Brillouin Gain. A numerical model, using a fully vectorial approach, by employing the finite element method, was developed to investigate methods for enhancing SBS in optical fiber. This paper describes the method related to the numerical model and discusses the analysis between the interactions of horizontal, shear and hybrid acoustic modes; and optical modes in optical fiber. Two case studies were used to demonstrate this. Based on this numerical model, we report the influence of core radius, clad radius and effective refractive index on the Brillouin frequency shift and gain. We observe the difference of Brillouin shift frequency between a normal silica optical fiber and that of a tapered fiber where nonlinearities are higher. Also observed, the different core radii used and their respective Brillouin shift. For future work, the COMSOL model can also be used for the following areas of research, including simulating “surface Brillouin shift” and also to provide in-sights to the Brillouin shift frequency vB of various structures of waveguides, e.g circular, and triangular, and also to examine specialty fibers, e.g. Thulium and Chalcogenide doped fibers, and their effects on Brillouin shift frequency.

Brillouin scattering in thin film optical waveguides. III. Experiments

1982 ◽  
Vol 60 (12) ◽  
pp. 1821-1837 ◽  
Author(s):  
N. L. Rowell ◽  
V. C-Y. So ◽  
R. Normandin ◽  
G. I. Stegeman
Keyword(s):  
Thin Film ◽  
Optical Waveguides ◽  
Brillouin Scattering ◽  
Planar Waveguides ◽  
Experimental Results

A series of experimental results on Brillouin scattering in thin film optical waveguides is discussed for two scattering geometries and for three types of planar waveguides. The results of these experiments are compared with the theory presented in the previous two papers.

Brillouin scattering in planar waveguides

1998 ◽  
Vol 58 (2) ◽  
pp. R547-R550 ◽  
Author(s):  
M. Montagna ◽  
M. Ferrari ◽  
F. Rossi ◽  
F. Tonelli ◽  
C. Tosello
Keyword(s):  
Brillouin Scattering ◽  
Planar Waveguides

Analysis of planar waveguides using Wentzel-Kramers-Brillouin-type methods

2004 ◽  
Vol 51 (3) ◽  
pp. 367-377
Author(s):  
C. R. Fernández-Pousa ◽  
F. Mateos ◽  
M. T. Flores-Arias ◽  
C. Bao ◽  
M. V. Pérez
Keyword(s):  
Planar Waveguides
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