High bandwidth traveling wave electro-optic modulator at 1{\mu}m on thin-film lithium tantalate
Ayed Al Sayem, Shiekh Zia Uddin, Ting-Chen Hu, Alaric Tate, Mark Cappuzzo, Rose Kopf, Mark Earnshaw
TL;DR
This paper demonstrates a novel high-bandwidth electro-optic modulator at 1 μm using thin-film lithium tantalate, achieving low voltage operation and stable high-frequency performance.
Contribution
First experimental demonstration of a high-bandwidth TFLT electro-optic modulator at 1 μm with low Vπ and stable operation up to 50 GHz.
Findings
Vπ of 2.4 V achieved
Electro-optic roll-off less than 2 dB up to 50 GHz
Stable DC bias operation demonstrated
Abstract
We present the first experimental demonstration of a high-bandwidth thin-film lithium tantalate (TFLT) electro-optic modulator operating at 1 {\mu}m, with a V{\pi} of 2.4 V, and less than 2 dB electro-optic roll-off up to 50 GHz and stable DC bias operation.
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