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physics.optics2025
A sub-volt near-IR lithium tantalate electro-optic modulator
Keith Powell, Dylan Renaud, Xudong Li +4
We demonstrate a low-loss integrated electro-optic Mach-Zehnder modulator in thin-film lithium tantalate at 737 nm, featuring a low half-wave voltage-length product of 0.65 V$\cdot…
physics.optics2025
Robust Poling and Frequency Conversion on Thin-Film Periodically Poled Lithium Tantalate
Anna Shelton, C. J. Xin, Keith Powell +4
We explore a robust fabrication process for periodically-poled thin-film lithium tantalate (PP-TFLT) by systematically varying fabrication parameters and confirming the quality of…
physics.optics2024
Stable electro-optic modulators using thin-film lithium tantalate
Keith Powell, Xudong Li, Daniel Assumpcao +3
We demonstrate electro-optic modulators realized in low-loss thin-film lithium tantalate with superior DC-stability (<1 dB power fluctuation from quadrature with 12.1 dBm input) co…