Theoretical Investigation of stimulated Brillouin scattering in Optical Fibers and their Applications

This thesis focuses on the investigation and applications of Brillouin scattering in optical fibers. The current chapter introduces the background, motivation, and contributions of the research work. Section 1.2 describes previously obtained solutions for SBS, which are numerical with analytical portions, and illustrates the motivation of developing a fully analytical solution of the Brillouin amplification problem valid for an arbitrary high depletion. Section 1.3 provides an overview of existing optical phase modulation devices and techniques and their limitations, and presents an optical phase modulation technique based on the principles of SBS, which would mitigate the disadvantages of existing technologies. Section 1.4 focuses on the investigation of a more accurate model of the polarization-dependent SBS interaction, including the possibility of elliptical birefringence, and its effect on the SBS process. Section 1.5 presents a polarization-independent technique to accurately realize all-optical logic gates based on the principles of combined Brillouin gain and loss in an optical fiber. Section 1.6 explains the thesis contributions, and section 1.7 provides the thesis outline.

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