公开(公告)号：US20210141283A1

公开(公告)日：2021-05-13

申请号：US16891440

申请日：2020-06-03

Applicant: Xi'an Institute of Optics and Precision Mechanics of CAS

Inventor： Leiran Wang ,  Qibing Sun ,  Wenfu Zhang ,  Chao Zeng ,  Weichen Fan ,  Wei Zhao

IPC: G02F1/35 ,  G02F1/355

Abstract: A system for generating a mid-infrared optical frequency comb based on a lithium niobate microcavity includes pumping units, a beam combining unit, a nonlinear frequency conversion unit and a filtering unit. The pumping units are divided into two paths and are configured to provide two paths of pumping light. The beam combining unit is configured to perform beam combination on the two paths of pumping light The nonlinear frequency conversion unit is configured to receive the beam-combined pumping light and undergo a nonlinear four-wave mixing process to generate a broadband optical frequency comb at a mid-infrared waveband. The filtering unit is configured to filter the remaining pumping light and output a mid-infrared optical frequency comb.