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Power-efficient Gray-scale Control of Silicon Thermo-optic Phase Shifters by Pulse Width Modulation Using Monolithically Integrated MOSFET

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Abstract

We first-time demonstrate gray-scale control by pulse-width modulation for silicon thermo-optic (TO) phase shifters using monolithic MOSFET. This work enables simple and power efficient control of TO modules without using DAC and analog current drivers.

© 2015 Optical Society of America

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