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Electro-optic modulation in the visible range promises many applications in areas from quantum computing to optogenetics. Existing modulator devices that are compatible with the CMOS process have weak electro-optic coefficients that require large voltages or a large footprint to obtain the desired efficiency. This thesis compares the use of two different materials for electro-optic modulation: a ... read morelithium niobate (LN) which has a high electro-optic coefficient and AlN on silicon nitride which has a weak electro-optic coefficient but is compatible with the CMOS process. Optimal VπL considering absorption losses was 0.83 Vcm for LN and 100 Vcm for AlN.
Thesis (B.S.E.E.)--Tufts University, 2022.
Submitted to the Dept. of Electrical and Computer Engineering.
Advisors: Aseema Mohanty and Marco Donato.read less
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