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:
Feb. 04, 2020
Filed:
Dec. 07, 2016
Wuhan Research Institute of Posts and Telecommunications, Wuhan, Hubei, CN;
Lei Wang, Hubei, CN;
Daigao Chen, Hubei, CN;
Xi Xiao, Hubei, CN;
Miaofeng Li, Hubei, CN;
Ying Qiu, Hubei, CN;
WUHAN RESEARCH INSTITUTE OF POSTS AND TELECOMMUNICATIONS, Wuhan, Hubei, CN;
Abstract
A broadband polarization beam splitter/combiner based on a gradient waveguide directional coupler, comprises a gradient waveguide directional coupler, a beam combining end (), a curved waveguide (), a TE mode end () and a TM mode end (). The coupler consists of a straight end gradient waveguide () and a serial end gradient waveguide (). The trend of change of the gradient waveguide () is opposite to the gradient waveguide (), and a gap is provided between the gradient waveguide () and the gradient waveguide (). The beam combining end () is connected with one end of the gradient waveguide (), the other end of the gradient waveguide () is connected with one end of the curved waveguide (), the other end of the curved waveguide () is connected with the TE end (), and the waveguide () is connected with the TM end ().