1.
Opt Lett
; 48(7): 1602-1605, 2023 Apr 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-37221720
RESUMEN
We demonstrate a low-loss, high-efficiency lithium niobate electro-optic (EO) modulator with optical isolation trenches to achieve stronger field confinement and reduced light absorption loss. The proposed modulator realized considerable improvements, including a low half-wave voltage-length product of 1.2â V·cm, an excess loss of â¼2.4â dB, and a broad 3-dB EO bandwidth of over 40â GHz. We developed a lithium niobate modulator with, to the best of our knowledge, the highest reported modulation efficiency of any Mach-Zehnder interferometer (MZI) modulator.