Method of evanescently coupling whispering gallery mode optical resonators using liquids [U.S. Patent US11650370B2]

Hengky Chandrahalim, Air Force Institute of Technology
Kyle T. Bodily, Air Force Institute of Technology

U.S. Patent US11650370B2

Abstract

The present invention relates to evanescently coupling whispering gallery mode optical resonators having a liquid coupling as well as methods of making and using same. The aforementioned evanescently coupling whispering gallery mode optical resonators having a liquid couplings provide increased tunability and sensing selectivity over current same. The aforementioned. Applicants’ method of making evanescent-wave coupled optical resonators can be achieved while having coupling gap dimensions that can be fabricated using standard photolithography. Thus economic, rapid, and mass production of coupled WGM resonators-based lasers, sensors, and signal processors for a broad range of applications can be realized.