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. 30, 2023
Filed:
Aug. 05, 2021
United States of America As Represented BY the Administrator of Nasa, Washington, DC (US);
Mark A. Stephen, Catonsville, MD (US);
Bowen Song, Santa Barbara, CA (US);
Jonathan Klamkin, Santa Barbara, CA (US);
Victoria Rosborough, Santa Barbara, CA (US);
Joseph Fridlander, Santa Barbara, CA (US);
United States of America as represented by the Administrator of NASA, Washington, DC (US);
Abstract
A non-etched gap is introduced along the length of an integrated Bragg grating with etched grooves such that the coupling coefficient, K, of the grating is reduced by the non-etched gap. In this way, multiple grating K values may be defined within a photonic integrated circuit using a single lithography and etch step. Additionally, the non-etched gap width may be varied along the length of a single grating to implement a chirped grating.