Press Release: Demonstration of Precise Control of an Ultra-compact "Optical Frequency Scale

Demonstration of Precise Control of an Ultra-Small "Optical Frequency Meter" - Toward Applications in Precision Spectroscopy and Low-Noise Microwave Generators

https://www.keio.ac.jp/ja/press-releases/2023/1/11/28-134598/

https://research-er.jp/articles/view/118039