Related Experiment Video
Updated: Aug 6, 2025
14:16
Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
Published on: October 23, 2018
7.7K
High-Performance Mach-Zehnder Modulator Based on Thin-Film Lithium Niobate with Low Voltage-Length Product
Ying Li1,2,3, Tian Lan1,2,3, Dengcai Yang1,2,3
1Beijing Engineering Research Center of Laser Technology, Beijing University of Technology, Beijing 100124, China.
ACS Omega
|March 20, 2023
Summary
Researchers developed on-chip electro-optic modulators (EOMs) using thin-film lithium niobate (TFLN) technology. These EOMs achieve low voltage-length products at 850 nm and 1550 nm, enabling efficient electrical-to-optical signal conversion.
Area of Science:
- Photonics
- Materials Science
- Electrical Engineering
Background:
- Electro-optic modulators (EOMs) are essential for converting electrical signals to optical signals.
- Thin-film lithium niobate (TFLN) is a promising platform for integrated photonic devices.
- On-chip EOMs are critical for high-speed optical communication and signal processing.
Purpose of the Study:
- To propose and demonstrate novel on-chip EOMs utilizing the TFLN platform.
- To achieve low voltage-length products for efficient modulation.
- To explore the performance of these EOMs at commercially relevant wavelengths.
Main Methods:
- Fabrication of on-chip EOMs on a TFLN photonic integration platform.
- Characterization of device performance at 850 nm and 1550 nm wavelengths.
- Measurement of voltage-length product and electro-optic bandwidth.
Main Results:
- Demonstrated on-chip EOMs with voltage-length products of 0.78 V·cm at 850 nm and 1.29 V·cm at 1550 nm.
- Achieved a 3-dB electro-optic bandwidth exceeding 40 GHz for the 1550 nm EOM.
- Confirmed the viability of the TFLN platform for high-performance EOMs.
Conclusions:
- The developed TFLN EOMs offer efficient modulation with low driving voltages.
- The high bandwidth performance indicates suitability for advanced optical systems.
- This work provides valuable insights for fabricating high-performance, multifunctional EOM devices on TFLN.
