公开(公告)号：US11125939B1

公开(公告)日：2021-09-21

申请号：US17224105

申请日：2021-04-06

Applicant: GeneSense Technology Inc.

Inventor： Bingzhou Hong ,  Xianchao Wang ,  Haochen Cui ,  Tianshu Wang ,  Yinghua Sun ,  Mei Yan

IPC: G01J3/14 ,  G02B6/10 ,  G01J3/12

Abstract: A waveguide filter sensing unit is provided. The waveguide sensing unit includes an input waveguide for receiving an optical signal and an interference waveguide region for filtering the optical signal to remove noise therein. The waveguide sensing unit further includes a cladding layer wrapping around the input waveguide and the interference waveguide region; and an optical signal detector converting the filtered optical signal into an electrical signal. The width of the input waveguide is smaller than that of the interference waveguide region, and the refractive index of the cladding layer is smaller than that of the input waveguide and the interference waveguide region.