# High-Precision Fabrication of TFLN Frequency Mixers We have recently developed a scalable fabrication technique for thin-film lithium niobate (TFLN) devices that dramatically improves wavelength accuracy in nonlinear frequency mixers. April 06, 2025 ![cj poling](/sites/g/files/omnuum6446/files/styles/hwp_1_1__960x960_scale/public/2025-07/image%20%285%29.png?itok=-0rs8qOO) By reversing the typical process -- performing poling after waveguide definition -- our team enabled precise metrology and correction of geometric errors. This approach led to 96% of devices hitting the target wavelength (737 nm) after post-processing. The method offers a promising path toward high-yield, high-precision photonic chips for quantum and classical applications. Read more about our research here: Share on:- [ Facebook ](#) - [ Twitter ](#) - [ Linkedin ](#)