Related Experiment Video
Updated: Jun 28, 2025
07:23
Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics
Published on: February 5, 2020
5.8K
Cryogenic lithium-niobate-on-insulator optical filter
Optics Letters
|April 15, 2024
Summary
Researchers developed a cryogenic-compatible optical filter on a lithium-niobate-on-insulator (LNOI) platform. This device maintains quality at low temperatures, advancing photonic integrated circuits for quantum and classical information processing.
Area of Science:
- Photonics
- Materials Science
- Quantum Information
Background:
- Photonic integrated circuits (PICs) are crucial for scalable optical classical and quantum information processing.
- Developing cryogenic-compatible PICs is essential for advanced applications.
Purpose of the Study:
- To prepare and verify a cryogenic-compatible optical filter on a lithium-niobate-on-insulator (LNOI) platform.
- To assess the performance of LNOI devices under cryogenic conditions.
Main Methods:
- Fabrication of an optical filter using a multimode waveguide grating on an LNOI platform.
- Testing the optical filter's performance across a temperature range from 295 K to 7 K.
Main Results:
- The integrated optical filter demonstrated good performance at cryogenic temperatures (7 K).
- Observed shifts in the working wavelength were consistent with material refractive index variations at different temperatures.
Conclusions:
- LNOI-based integrated optical devices are suitable for cryogenic applications.
- This work advances the development of PICs for low-temperature quantum and classical information processing.
