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Photonic circuits have for the most part focused on sending single modes through waveguides. This thesis provides an intuitive system for understanding multimode wave propagation and leverages it to create reconfigurable patterns in a waveguide. Using Fourier-like sinusoidal approximations for waveguide mode profiles, wave propagation through long waveguides can be simulated in real time. The ... read morebiggest feature of this framework is that it lets a designer deterministically create any desired field profile at a chosen cross-section in the waveguide. This opens up possibilities for imaging, precise optical trapping on-chip, and even the replacement of phased arrays with a single long waveguide.
Thesis (B.S.E.E.)--Tufts University, 2022.
Submitted to the Dept. of Electrical and Computer Engineering.read less
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