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Title Harmonic Oscillations in Optical Waveguide Arrays
Publication Date
Date Available
Degree Level masters
University/Publisher University of Toronto

The analogy of optical system to other physical systems has been attracting much attention over the past decades. In coupled optical lattices, phenomena originated from electronic systems, such as Bloch oscillations, Dynamic localization and Zener tunneling, have been extensively investigated and led to novel research directions and applications. Following this idea, harmonic oscillations are spatially mimicked by the propagation of supermodes in quadratically-coupled waveguide arrays. By analyzing the field envelope with the propagation constants and the superposition of the supermodes, we achieve conjugate-imaging at the half-period plane and self-imaging at the full-period plane, which give rise to the linear switching. Combining the linear switching and the nonlinear light propagation triggered at high power level, we demonstrate the superior performances of nonlinear power switching compared with traditional nonlinear directional couplers. Through the linear and nonlinear observation on AlGaAs waveguide array, we present the first experimental proof of the harmonic oscillations in optical waveguide arrays.


Subjects/Keywords Harmonic Oscillations; Optical Waveguide; AlGaAs; Nonlinear Switching; Linear Switching; 0544
Contributors Aitchison, J. Stewart; Electrical and Computer Engineering
Language en
Country of Publication ca
Record ID handle:1807/43338
Repository toronto-thes
Date Retrieved
Date Indexed 2017-12-19

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