High-Q and Compact Fabry-Perot Microresonators on Thin-Film Lithium Niobate

Fuente: arXiv
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Main Authors: Yang, Likai, Li, Chunzhen, Xie, Jiacheng, Tang, Hong X.
Format: Preprint
Published: 2025
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author Yang, Likai
Li, Chunzhen
Xie, Jiacheng
Tang, Hong X.
author_facet Yang, Likai
Li, Chunzhen
Xie, Jiacheng
Tang, Hong X.
contents Thin-film lithium niobate (TFLN) has played a pivotal role in the advancement of integrated photonics, by supporting a diverse range of applications including nonlinear optics, electro-optics, and piezo-optomechanics. The effective realization and enhancement of these interactions rely heavily on the implementation of high quality photonic microresonators. The pursuit of novel resonator architectures with optimized properties thus represents a central research area in TFLN photonics. In this work, we design and fabricate TFLN Fabry-Perot microresonators, by placing a straight section of waveguide between a pair of tapered photonic crystal mirrors. The resonator features a high quality factor of 600k at 1530 nm and a compact length of 100 um. The functionality of the device is further demonstrated by integrating on-chip electrodes for high-frequency piezo-optomechanical modulation. Our device can serve as an appealing candidate for developing high-performance photonic components on the TFLN platform.
format Preprint
id arxiv_https___arxiv_org_abs_2510_07598
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle High-Q and Compact Fabry-Perot Microresonators on Thin-Film Lithium Niobate
Yang, Likai
Li, Chunzhen
Xie, Jiacheng
Tang, Hong X.
Optics
Thin-film lithium niobate (TFLN) has played a pivotal role in the advancement of integrated photonics, by supporting a diverse range of applications including nonlinear optics, electro-optics, and piezo-optomechanics. The effective realization and enhancement of these interactions rely heavily on the implementation of high quality photonic microresonators. The pursuit of novel resonator architectures with optimized properties thus represents a central research area in TFLN photonics. In this work, we design and fabricate TFLN Fabry-Perot microresonators, by placing a straight section of waveguide between a pair of tapered photonic crystal mirrors. The resonator features a high quality factor of 600k at 1530 nm and a compact length of 100 um. The functionality of the device is further demonstrated by integrating on-chip electrodes for high-frequency piezo-optomechanical modulation. Our device can serve as an appealing candidate for developing high-performance photonic components on the TFLN platform.
title High-Q and Compact Fabry-Perot Microresonators on Thin-Film Lithium Niobate
topic Optics
url https://arxiv.org/abs/2510.07598