The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2020
Filed:
Nov. 16, 2018
Wuhan Telecommunication Devices Co., Ltd., Wuhan, Hubei, CN;
Ben Chen, Hubei, CN;
Xuerui Liang, Hubei, CN;
Baiquan Hu, Hubei, CN;
Chenggang Liu, Hubei, CN;
Di Zhang, Hubei, CN;
Yongan Fu, Hubei, CN;
Liping Sun, Hubei, CN;
Weidong Ma, Hubei, CN;
Xianghong Yu, Hubei, CN;
Wuhan Telecommunication Devices Co., Ltd., Wuhan, CN;
Abstract
A coupling structure includes a single mode active device and a planar optical waveguide. Specifically, the planar optical waveguide includes a silica waveguide for transmitting an optical signal, where the silica waveguide includes a coupling section and a conduction section; the coupling section is of a regular trapezoidal structure or an inverted trapezoidal structure, where a surface of the coupling section coupled to the single mode active device is a trapezoid top, and a surface of the coupling section connected with the conduction section is a trapezoid bottom; and a coupling gap is preset between the single mode active device and the planar optical waveguide.