Inverse Scattering Theory for Phase-Conjugate Reflection Coefficients: Application to Optical Switching
The importance of the phase function for the solution of inverse problems can be demonstrated by considering phase-conjugate reflection coefficients, i.e., two reflection coefficients with equal amplitudes but opposite phases. Propagation of light rays along a dielectric waveguide can be modelled as a progression of total internal reflections at the boundaries of the waveguide. Since it is known from direct scattering theory that total internal reflection at a dielectric interface is accompanied by a phase change of p radians, it will be useful for the synthesis of inhomogeneous optical waveguides to investigate the implications of this phenomenon for the corresponding inverse problem.
KeywordsReflection Coefficient Optical Waveguide Total Internal Reflection Dielectric Waveguide Switching Speed
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