Experimental demonstration of electro-optic control in a multi-stage MZI on TFLN, suggesting enhanced modulation capabilities.
We report a multi-stage racetrack-Mach Zehnder interferometric (MZI) coupler on thin-film lithium niobate (TFLN) with both thermal and electro-optic control. We experimentally show fabrication tolerant electro-optic coupling modulation with a drive voltage of 1.5 V with a 3.75 mm long modulator section.
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Sayem et al. (2025) studied this question.
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