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:
Aug. 11, 2026
Filed:
May. 16, 2023
University of Maryland, College Park, College Park, MD (US);
California Institute of Technology, Pasadena, CA (US);
Yang Zhang, Hyattsville, MD (US);
Mario Dagenais, Chevy Chase, MD (US);
Sylvain Veilleux, Chevy Chase, MD (US);
Jiahao Zhan, College Park, MD (US);
Pradip Gatkine, Pasadena, CA (US);
Wei-Lun Hsu, Silver Spring, MD (US);
UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US);
CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);
Abstract
An arrayed waveguide grating (AWG) can have a reusable delay line, a plurality of coupling devices, and a free propagation region (FPR). The delay line can have a continuous first waveguide connected to receive a plurality of wavelengths. Each coupling device can have a second waveguide coupled to a respective portion of the continuous first waveguide. The FPR can have input and output ends. The input end of the FPR can be coupled to receive the radiation from each of the coupling devices. The radiation can be directed to spatially-separated output channels based on wavelength at the output end of the FPR. The plurality of coupling devices and the delay line are configured to control power and phase distributions of the radiation transmitted to the FPR.