Compact, efficient electro-optic frequency comb lights the way for next-gen photonics

https://www.eurekalert.org/news-releases/1071158

"measures light... high power demands, limited bandwidth. complex tuning, overcome combining microwave/ optical circuit designs on the newly developed lithium tantalate (17X lower intrinsic birefringence) platform... 450 nm spectral coverage with >2K comb lines... 20-fold reduced microwave power requirement... integrated triply resonance: 3 interacting fields, 2 optical/ 1 microwave... integrates monolithic microwave circuits with photonic components. embedding distributed coplanar waveguide"